Ted Cruz, Marco Rubio, Ben Carson and Donald Trump were among nine Republicans debating on the main stage last week. They could return next month, but perhaps with only two other Republicans joining them. (AP Photo/John Locher)
Ted Cruz, Marco Rubio, Ben Carson and Donald Trump were among nine Republicans debating on the main stage last week. They could return next month, but perhaps with only two other Republicans joining them. (AP Photo/John Locher) John Locher AP
Ted Cruz, Marco Rubio, Ben Carson and Donald Trump were among nine Republicans debating on the main stage last week. They could return next month, but perhaps with only two other Republicans joining them. (AP Photo/John Locher) John Locher AP

GOP debate field could shrink to six

December 22, 2015 08:52 PM