IIRC, the Donald is ahead of the pace Romney was at last time; what people didn't count on was Kasich explicitly staying in long after he'd been skunked everywhere, explicitly to deny Trump Oho (Winner-take-all); and if Trump had got both Florida AND Ohio on the same day, even the megalomaniacal-acting Cruz would've had to drop out.
Speaking of that, people didn't count on TWO people either mathematically eliminated, or all-but-mathematically eliminated, not only staying in the race but openly conniving with sitting party officials to try to slime and cheat and defame their own party's front runner.
Look at the facts, troll-boy.
How many other candidates have have several hundred MILLION in attack ads thrown at them by their own party, and still led the pack?
False, disproven here. Trump is behind the pace of the last six, non-incumbent presidential primary campaign leaders.