Donald Trump says he is pulling out of a Republican debate he had been due to moderate this month, after all but two of the US presidential candidates declined to appear.
55155
Trump pulls out of Republican debate
128326
Romney losing election debate --
147301
Santorum suspends presidential campaign
134522
Santorum to drop out of presidential race
83760
Donald Trump withdraws lawsuit against Bill Maher
163620
Cain suspends campaign
170518
Huntsman quits presidential race
67838
Cabinet ministers agree on ending heated debate, relying on dialogue to solve disputes
87522
Huckabee announces he will not seek Republican nomination for president in 2012
20890
The political spectrum has shifted right
130338
Unemployment drops in presidential battleground states
40801
Rick Santorum suspends campaign
15093
Oregon GOP presidential debate cancelled
163266
Thompson drops out of the presidential race
23505
Mccain wraps up nomination;
73135
Republican convention gets back on track
166145
Trump booed out of Madison Square Garden