ROVIDENCE, R.I. - Two days after losing a bid for a second term, Sen. Lincoln Chafee (news, bio, voting record) said he was unsure whether he would remain a Republican. Chafee lost to Democrat Sheldon Whitehouse in a race seen as a referendum on President Bush and the GOP. On Thursday, he was asked whether he would stick with the Republican Party or become an independent or Democrat. "I haven't made any decisions. I just haven't even thought about where my place is,".......