Chafee hints at bid

WASHINGTON — On the eve of Hillary Rodham Clinton’s presidential campaign launch, Lincoln Chafee, a former U.S. senator and governor from Rhode Island, announced Thursday that he is exploring a run for the Democratic presidential nomination.

And unlike other potential Clinton challengers, Mr. Chafee appears to be spoiling for a fight.

In an interview with the Washington Post on Thursday, Mr. Chafee did not mince words when he said Ms. Clinton’s 2002 Senate vote to authorize military action in Iraq should disqualify her from becoming commander in chief.