If Donald Trump reaches March 15 with a substantial lead in the polls, it will be difficult for any other Republican candidate to catch him.
Is Donald Trump nearing a tipping point after which it will be difficult for any other Republican to pass him in the presidential nomination race?
Also read: Sims, Palmer lead Chicago State to victory
02:09 AP Source: Trump picks former Ga. Gov. Perdue to lead USDA11
16:35 Some Democrats are criticizing John Lewis’s ‘legitimate’ jab at Trump. That means it worked16
01:24 Trump vows ‘insurance for everybody’ in Obamacare replacement plan17
23:15 Five takeaways from Pruitt's EPA hearing14