[DOC] [TLE] Party switching in the United States - Wikipedia [PAR] In the United States politics, party switching is any change in party affiliation of a 
partisan public ... By the late 19th century, as the Democratic and Republican 
parties became .... Whitfield, the day before filing as a candidate for the U.S. 
House in Kentucky. .... after losing to challenger Ned Lamont in the Democratic 
Primary. [DOC] [TLE] United States Senate elections, 1972 - Wikipedia [PAR] Elected Majority Leader  Mike Mansfield  Democratic. The 1972 United States 
Senate election was an election for the United States Senate coinciding with the 
landslide reelection of Republican President Richard Nixon. Despite Nixon's 
victory, Democrats increased their majority by two seats. ... U.S. House of 
Representatives, Office of the Clerk. [DOC] [TLE] United States Senate elections, 2012 - Wikipedia [PAR] Elections to the United States Senate were held on November 6, 2012, with 33 of 
the 100 seats in the Senate being contested in regular elections whose winners 
will serve six-year terms beginning January 3, 2013 with the 113th Congress. 
The Democrats had 21 seats up for election, plus two independents who ..... 
Three-term incumbent and Senate Minority Whip Republican Jon Kyl, who... [DOC] [TLE] United States Senate elections, 2016 - Ballotpedia [PAR] In order to take the chamber back, Democrats need to gain five seats in 2016. 
The majority of seats up for election are held by Republican incumbents, many of 
... the Senate in 2016, it is unlikely that they will get another opportunity until at 
least 2020. ..... The table below lists the 2016 congressional primary dates and 
filing... [DOC] [TLE] United States Congress elections, 2016 - Ballotpedia [PAR] A total of 469 seats in the U.S. Congress (34 Senate seats and all 435 House 
seats) ... The Republicans won the Senate majority in the 2014 midterm elections 
when ... There are 24 Republican seats and 10 Democratic seats up for re-
election. ..... In Republican primary races featuring an incumbent, 52.25 percent 
of races... [DOC] [TLE] Democrats Have a Chance to Take Back the House and Senate ... [PAR] Apr 29, 2016 ... And, party leaders add, there's a fresh crop of liberal congressional ... 
Congressional Campaign Committee, which oversees House races, ready to surf 
back ... and recruiting still ongoing until the last filing deadline, there is no 
question ... A GOP super PAC dedicated to retaining the House majority recently
... [DOC] [TLE] Ronald Reagan: Campaigns and ElectionsMiller Center [PAR] But in the 1960s, the coalition was fraying along lines of race and class, and the 
... Reagan gave token support to Ford in the fall campaign against Democrat 
Jimmy ... He was the choice of rank-and-file Republican voters in public opinion 
polls ... the nomination in 1980: Senate minority leader Howard Baker of 
Tennessee,... [DOC] [TLE] OnPolitics - Washington Post [PAR] Senate Majority Leader Trent Lott of Mississippi, arguably the most ... Lott cast the 
race for majority leader as a chance for a more aggressive style of ... did not 
become a Republican until the eve of his first House campaign in 1972. ... But 
when his opportunity came to run for an open House seat, he filed in the GOP 
primary,... [DOC] [TLE] A Dream Undone - The New York Times [PAR] Jul 29, 2015 ... He was staying at his parents' house in Ellerbe, N.C.; the ceremony would take .... 
senator from Mississippi, which was then majority black, becoming the first black 
.... it was very unlikely a conservative was going to win a Democratic primary. ... 
Helms echoed some of Nixon's themes in his 1972 race, and... [DOC] [TLE] Cochran Edges McDaniel in Mississippi's Second Down-to-Wire Race [PAR] Jun 24, 2014 ... Image: Cochran Edges McDaniel in Second Mississippi Nailbiter ... The 
Assocated Press waited until more than 98 percent of the vote was counted ... 
Senate races  as high as $17 million for the GOP primary alone ... The biggest 
was the stunning defeat June 10 of House Majority Leader Eric Cantor to... [DOC] [TLE] cpac news; pence plays; blunt

Question: This Senate majority leader was a Democrat until filing for the GOP primary in a Mississippi House race in 1972
Answer: Trent Lott