CLEVELAND, Ohio (AP) -- Mitt Romney's presidential campaign is trying to stay on the offensive in the increasingly heated Medicare debate.
Romney and his running mate, Wisconsin Rep. Paul Ryan, are inviting discussion of their plans for the health care program that affects tens of millions of seniors, thrusting Ryan's budget plans into the center of the White House race.
Ryan crafted a proposal that would transform Medicare into a voucher-like system.
Romney's campaign also is trying to undermine one of President Barack Obama's greatest campaign strengths - his personal likability. The Republican said Wednesday that Obama's campaign is fueled by "division and attack and hatred.''
Ryan will face voters in the Canton, Ohio, area Thursday as Romney attends a series of private fundraisers.
Obama and Vice President Joe Biden are in Washington.