A person whose political philosophy is a blend of policies and principles from both the Republican and Democratic parties:Republicrats are blurring the differences between our two parties[as modifier]:Republicrat senators...
He is what he says Americans are: practical-a stance that has caused the far left to call him a Republicrat and the far right to label him a Communist.
To punctuate his point, Mr. King boomed, ‘I am a Republicrat’ - which to his mind means that he will sing whatever tune is necessary to keep the ear of people with the power to help his community - and perhaps Don King.’
Origin
Late 19th century: blend of Republican and Democrat.