Mike Huckabee drops out of race and calls for a united Republican Party. -- After an unexpectedly strong campaign, former Arkansas governor Mike Huckabee is dropping out of the Republican presidential race. In a speech in Texas, Huckabee said he fought a good fight and stayed in the race until it was over. Senator John McCain is now the presumptive G-O-P presidential nominee -- and Huckabee is asking his supporters to back McCain for the good of the Republican Party. McCain beat Huckabee in Texas and three other states tonight, surpassing the 11-hundred-91 delegates needed to clinch the Republican nomination.