After losing the Majority Leader post, Lott was less visible on the national scene, although he did break with some standard conservative positions. He battled with Bush over military base closures in his home state. He showed support for passenger rail initiatives, notably his 2006 bipartisan introduction, with Sen. Frank Lautenberg of New Jersey, of legislation to provide 80 percent federal matching grants to intercity rail and guarantee adequate funding for Amtrak. On July 18, 2006, Lott voted with 19 Republican senators for the Stem Cell Research Enhancement Act to lift restrictions on federal funding for the research. On November 15, 2006 Lott regained a leadership position in the Senate, when he was named Minority Whip after defeating Lamar Alexander of Tennessee 25–24.