Some key excepts from his wikipedia page:
Johnson announced his candidacy for President on April 21, 2011, as a Republican, on a libertarian platform emphasizing the United States public debt and a balanced budget through a 43% reduction of all federal government spending, protection of civil liberties, an immediate end to the War in Afghanistan and his advocacy of the FairTax. On December 28, 2011, after being excluded from the majority of the Republican Party’s presidential debates and failing to gain traction while campaigning for the New Hampshire primary, he withdrew his candidacy for the Republican nomination and announced that he would continue his presidential campaign as a candidate for the nomination of the Libertarian Party.
In an interview in Reason magazine in January 2001, Johnson’s accomplishments in office were described as follows: “no tax increases in six years, a major road building program, shifting Medicaid to managed care, constructing two new private prisons, canning 1,200 state employees, and vetoing a record (state and federal record) number of bills”
According to one New Mexico paper, “Johnson left the state fiscally solid”, and was “arguably the most popular governor of the decade . . . leaving the state with a $1 billion budget surplus.” The Washington Times has reported that when Johnson left office, “the size of state government had been substantially reduced and New Mexico was enjoying a large budget surplus.
In the 2008 presidential election campaign, Johnson endorsed Ron Paul for the Republican nomination. Johnson serves on the Advisory Council of Students for Sensible Drug Policy, a student nonprofit organization that believes that the war on drugs needs to be reevaluated. As of April 2011, he serves on the board of directors of Students For Liberty, a nonprofit libertarian organization.
In 1999, Johnson became one of the highest-ranking elected officials in the United States to advocate the legalization of marijuana. Saying the War on Drugs was “an expensive bust,” he advocated the decriminalization of marijuana use and concentration on harm reduction measures for all other illegal drugs. “He compared attempts to enforce the nation’s drug laws with the failed attempt at alcohol prohibition. Half of what government spends on police, courts and prisons is to deal with drug offenders.” He suggested that drug abuse be treated as a health issue, not as a criminal issue. His approach to the issue garnered supportive notice from conservative icon William F. Buckley, as well as the Cato Institute and Rolling Stone.
My views might be best summarized by Andrew P. Napolitano, a former judge of the Superior Court of New Jersey. He is the senior judicial analyst at Fox News Channel and has written six books on the U.S. Constitution.
Obama is either a Marxist who doesn’t believe in personal freedom or private property, or a nihilist who doesn’t believe in anything except his own ability to exercise governmental power.
Romney sounds like another big-government Republican who wants to regulate part of the economy, fight wars on a credit card and let your grandchildren pay for it.
If you want a real debate — one that will explore the proper constitutional role of the federal government in our lives before it gets so big that we cannot safely challenge it — you will be disappointed, unless Gary Johnson is let in.