Trump's journey from political punchline to 'presumptive GOP nominee'

Donald Trump is the presumptive GOP nominee.Those words — tweeted by Republican Party leader Reince Priebus moments after Ted Cruz announced his decision to leave the presidential race — bring the party to a place that many never believed it would be in.Tuesday night's victory for Trump in the Indiana primary was a turning point in the final push for the Republican nomination — though he is still about 200 delegates short of the 1,237 he would need to enter the convention uncontested.But the fate of the billionaire-turned-reality-star-turned-politician was not always clear, and a look back at his very first step into the 2016 campaign paints an interesting picture of just how far he's come from a political punchline to a major party candidate.