Sen. Gary Peters (D-Mich.), chair of Senate Democrats’ campaign arm, credited former President Trump for Democratic turnout in the midterms and said Trump could continue to be a problem for Republicans. “There’s no question that Donald Trump is a motivating factor for turnout when it comes to Democratic voters,” Peters said in an interview with NBC’s Sahil Kapur. Democrats secured a razor-thin majority in the Senate in the midterm elections by flipping Pennsylvania’s seat and defending vulnerable incumbents in Nevada and Arizona. In Georgia, Sen. Raphael Warnock (D) will face Republican Herschel Walker again in a Dec. 6 runoff that...