Donald Trump has reportedly decided to slice in half the size of the Republican party’s platform, a move expected to cause waves of infighting among GOP leaders and special interests. The New York Times reported Saturday that the ex-president’s “top advisers are planning to drastically scale back and simplify the official platform of the Republican Party,” citing “a memo sent to the party’s platform committee.” “The memo — signed by Chris LaCivita and Susie Wiles, the former president’s two lead advisers — described their efforts to pare down the platform ‘to ensure our policy commitments to t…