But other possible Republican contenders have fallen away in recent days.
He had been mentioned as a possible presidential contender.
The crash took out 12 cars, some of which were possible contenders.
He was seen as a possible contender in Brazil's 1994 presidential election.
Just don't scratch me off the list of possible contenders for the ticket.
He was also considered to be one of the possible contenders after his father's death in June 2012.
He is the second possible contender for the Republican nomination to withdraw from the race this month.
We like to feel that we are the most serious, probable and possible contender.
Biden had been mentioned among possible contenders in the 1984 presidential election.
He was mentioned as a possible contender in the 2008 Senate election.
