Susan Collins, vulnerable GOP senator, open to impeachment witnesses Staff
Posted: Dec 31, 2019 4:44 PM
Maine Sen. Susan Collins, a 67-year-old centrist who is among the nation's most vulnerable Republicans in Congress, said Monday she was open to calling witnesses as part of the Senate impeachment trial of President Trump -- but added that it would be "premature" to decide who should be called until senators see the evidence that is presented.