Question: What was the name of the national chairman of the party that took on the chair of the Minnesota Reform Party in an advisory role?

Context paragraphs:
Dean Barkley: Dean Malcolm Barkley (born August 31, 1950) is an American lawyer and politician who briefly served as a United States Senator from Minnesota from 2002 to 2003.  A founder and chair of the Minnesota Reform Party (the predecessor of the Independence Party of Minnesota), he chaired Jesse Ventura's successful 1998 gubernatorial campaign; Ventura subsequently appointed him director of the state's Office of Strategic and Long Range Planning, and appointed Barkley to the U.S. Senate after the death of Paul Wellstone.  Barkley ran as the Independence Party's candidate for the Senate in 2008, finishing third as Democrat Al Franken defeated the Republican incumbent Norm Coleman by 312 votes.

American Reform Party: The American Reform Party is a minor political action committee in the United States that was formed in a factional split from the larger Reform Party of the United States in October 1997.  The split occurred when some members of the Reform Party, believing that party founder Ross Perot had rigged the party's 1996 presidential nomination for himself, walked out of the national convention.

Independence Party of America: The Independence Party of America (IPA) was a political party in the United States, founded on September 23, 2007 as a coalition of existing state parties bearing the Independence Party name.  Its National Chairman was Frank MacKay, chairman of the Independence Party of New York.  Dean Barkley, a former United States Senator and Independence Party of Minnesota activist, agreed to play an advisory role with the new party.

National Reform Party (Hawaii): In January, 1890, the National Reform Party was established in opposition to the Reform Party, drawing from the group "Hui Kālaiʻ āina" and the Mechanics' and Workingmens' Political Protective Union.  It was regarded as moderate political party and supported Queen Liliʻ uokalani and native Hawaiians, making themselves favored when she formed her cabinet which were all members of the National Reform Party.  The other two main parties were both critical of the queen.  The conservative Reform Party said she was too liberal and the Liberal Party accused her of being too conservative.

Reform Party (19th-century Wisconsin): The Reform Party, also called Liberal Reform Party or People's Reform Party was a short-lived coalition of Democrats, reform and Liberal Republicans, and Grangers formed in 1873 in the U.S. state of Wisconsin, which secured the election for two years of William Robert Taylor as Governor of Wisconsin, as well as electing a number of state legislators.

David Collison: David Collison was the national chairman of the Reform Party of the United States of America.  He was elected national chairman at the party's 2008 national convention in Dallas, Texas.  He was re-elected for a second term in 2012 during the Reform Party National Convention in Philadelphia, Pennsylvania.

The New Canada: The New Canada is a Canadian political literature book written by Reform Party of Canada founder and leader Preston Manning and published by Macmillan Canada.  The book explains the personal, religious, and political life of Preston Manning and explains the roots and beliefs of the Reform Party.  At the time of its publishing in 1992, Reform had become a popular populist conservative party in Western Canada after the mainstream Progressive Conservative Party of Canada was collapsing in support and in 1991 decided to expand eastward into Ontario and the Maritimes.  One year later the PC party collapsed in the 1993 federal election, allowing the Reform Party to make political history in Canada, deplacing the PCs as the dominant conservative party in Canada.  Reform, later renamed the Canadian Alliance, merged with the PC Party in 2003, to form a united right-wing alternative to the governing Liberal Party of Canada, named the Conservative Party of Canada which has dropped many of the populist themes that the Reform Party had.

Reform Party (Northern Mariana Islands): The Reform Party is a political party in the Northern Mariana Islands.  It is not an affiliate of the Reform Party USA but rather the American Reform Party, a splinter group of that party.  In the last legislative elections held on 1 November 2003, the party won no seats; gubernatorial candidate Froilan Cruz Tenorio of the Reform Party won 11.3% of the vote.  The party didn't take part in the 2005 elections.

Donald Trump presidential campaign, 2000: Donald Trump's presidential campaign of 2000 for the nomination of the Reform Party began when real estate magnate Donald Trump of New York announced the creation of a presidential exploratory committee on the October 7, 1999 edition of "Larry King Live".  Though Trump had never held elected office, he was well known for his frequent comments on public affairs and business exploits as head of The Trump Organization.  He had previously considered a presidential run in 1988 as a Republican, but chose not to run.  For 2000, Minnesota Governor Jesse Ventura persuaded Trump to seek the presidential nomination of the Reform Party, which was fracturing despite achieving ballot access and qualifying for matching funds as a result of the 1996 presidential campaign of businessman Ross Perot.  Trump's entrance into the Reform Party race coincided with that of paleoconservative commentator Pat Buchanan, whom Trump attacked throughout the campaign as a "Hitler-lover."

Reform Party of New York State: The Reform Party of New York State (also known as the New York State Reform Party) is the name of two unrelated political parties in the state of New York: a qualified party active only in New York State, and the New York branch of the Reform Party of the United States of America.

Supporting paragraphs: Independence Party of America Dean Barkley
Answer: Frank MacKay