Answer the question at the end by quoting:

Edward Rickenbacker was born in Columbus, Ohio, to Swiss German-speaking immigrants. From childhood, he loved machines and experimented with them, encouraged by his father's words: "A machine has to have a purpose". In what was to become one of the defining characteristics of Rickenbacker's life, he nearly died many times in events ranging from an early run-in with a horse-drawn carriage, to a botched tonsillectomy, to airplane crashes. His first life-threatening experience occurred when he was in the "Horsehead Gang".
Rickenbacker wanted to join the Allied troops in World War I, but the U.S. had not yet entered the war. He had several chance encounters with aviators, including a fortuitous incident in which he repaired a stranded aircraft for Townsend F. Dodd, a man who later became General John J. Pershing's aviation officer and an important contact in Rickenbacker's attempt to join air combat. During World War I, with its anti-German atmosphere, he -- like many other German Americans -- changed his surname; the "h" in "Rickenbacher" became a "k" in an effort to "take the Hun out of his name." As he was already well known at the time, the change received wide publicity. "From then on", as he wrote in his autobiography, "most Rickenbachers were practically forced to spell their name in the way I had..." He believed his given name "looked a little plain." He signed his name 26 times, with a different middle initial each time. After settling upon "V", he selected "Vernon" as a middle name. In 1916, Rickenbacker traveled to London, with the aim of developing an English car for American races. Because of an erroneous press story and Rickenbacker's known Swiss heritage, he was suspected of being a spy. En route and in England, agents closely monitored his actions. On a sea voyage back to America, he came up with the idea to recruit his race car driver friends as fighter pilots, on the theory that such men were accustomed to tight spaces and high speeds. His suggestion was ignored by the military.

What was he doing before the US entry?

several chance encounters with aviators, including a fortuitous incident in which he repaired a stranded aircraft

Answer the question at the end by quoting:

A marching band is a group in which instrumental musicians perform while marching, often for entertainment or competition. Instrumentation typically includes brass, woodwind, and percussion instruments. Most marching bands wear a uniform, often of a military style, that includes an associated school or organization's colors, name or symbol. Most high school marching bands, and some college marching bands, are accompanied by a color guard, a group of performers who add a visual interpretation to the music through the use of props, most often flags and rifles.
Many bands have auxiliaries that add a visual component to the performance. For ceremonial bands, this could be a traditional color guard or honor guard. For drum & bugle corps and corps-style field bands, this could include Dance lines, majorettes, Auxiliary units may be collectively referred to as color guard or visual ensemble. Auxiliaries may perform as independent groups. In the early 1970s, color guards began to hold their own competitions in the winter (after the American football season, and before the beginning of the summer drum and bugle corps season). These became known as winter guard. There are also numerous dance competitions in the off-season. The color guard of a marching band or drum and bugle corps may contain sabers, mock rifles, and tall flags. In modern bands, other props are often used: flags of all sizes, horizontal banners, vertical banners, streamers, pom-poms, even tires, balls, and hula hoops or custom built props. The color guard may also employ stage dressing such as backdrops, portable flats, or other structures. These can be used simply as static scenery or moved to emphasize block drill, and are often used to create a "backstage" area to store equipment and hide personnel. While military color guards were typically male, band color guards tend to be primarily female, though it is becoming more common for men to join as well. A few independent units are all-male. Guard members nearly always wear a special uniform or costume that is distinctive from that of the band, not necessarily matching in design or color. The men's and women's guard uniforms are usually designed in one of two ways: nearly identically, but with gender-specific parts (i.e. skirts) adapted for the use of the opposite sex; or complimentarily, with the two uniforms designed similarly but with variations in color or form. The color guard uniform, especially in a high school marching band, need not be in school colors; in fact, they rarely are. These uniforms are designed to represent a certain aspect of the halftime show, characterize the guard members through costumes, or tell some sort of story, and can thus be in any design or color (a surprisingly common complaint among the high school audience is that guard uniforms and equipment "aren't school colors"). Indoor color guards have become popular within high schools and universities throughout the United States. These groups perform a theme-based show in competitions after the outdoor marching band season ends. Indoor color guard shows are typically performed in school gymnasiums and are adjudicated.

What kid of visual component?

For ceremonial bands, this could be a traditional color guard or honor guard. For drum & bugle corps and corps-style field bands, this could include Dance lines, majorettes,

Answer the question at the end by quoting:

Duncan Lee Hunter (born May 31, 1948) is an American politician. He was a Republican member of the House of Representatives from California's 52nd, 45th and 42nd districts from 1981 to 2009. Hunter was the chairman of the House Armed Services Committee during the 108th and 109th Congress. Hunter sought the Republican Party nomination for President of the United States for 2008, but his campaign failed to attract significant voters or delegates in early primary and caucus states, and he dropped out after the Nevada Republican caucuses.
In 1980, Hunter was recruited to run for Congress in what was then the 42nd District against 18-year incumbent Democrat Lionel Van Deerlin. Hunter was initially an underdog in a district where Democrats outnumbered Republicans by almost 2 to 1. However, his attacks on Van Deerlin's record on national defense gained traction in a district dominated by military bases and personnel. Van Deerlin did not respond quickly enough, and Hunter narrowly defeated him. He was one of many Republicans swept into office from historically Democratic districts as a result of the "Reagan revolution"; Van Deerlin had been the district's only congressman since its creation in 1963. After the 1980 census, many of the more Democratic areas were cut out of Hunter's district, and he was reelected 13 more times with no substantive opposition. His district was renumbered as the 45th District in 1983 and the 52nd in 1993. In the 2006 general election, he defeated Navy veteran/minister John Rinaldi, a Democrat, and Michael Benoit, a Libertarian. Hunter was re-elected with 65 percent of the vote, a 33-point margin over Rinaldi. On March 20, 2007, Hunter announced that, as part of his presidential bid, he would not seek re-election to the House of Representatives in 2008. After his son, Duncan D. Hunter, announced his candidacy for his father's seat, the younger Hunter was recalled by the United States Marine Corps to serve in the Operation Enduring Freedom - Afghanistan. During Duncan D. Hunter's active service, his wife, Margaret Hunter, campaigned on his behalf. On June 3, 2008 Duncan D. Hunter won 72% of the Republican Primary vote and became the Republican nominee to replace his father representing the 52nd District.

did he run again when he returned from the marines?
During Duncan D. Hunter's active service, his wife, Margaret Hunter, campaigned on his behalf.