(FILES)This combination of file photos shows Republilcan presidential candidates Ted Cruz(L) Donald Trump (C)and John Kasich.
Ted Cruz and John Kasich have agreed to join forces to try to deny frontrunner Donald Trump the Republican Party's presidential nomination, their campaigns said April 24, 2016. The sudden alliance, revealed in short statements, arose due to the pressing timing of the Republican party's presidential primary season.
 / AFP / dsk        (Photo credit should read DSK/AFP/Getty Images)