Two years ago today, on June 16, 2015, billionaire real estate developer Donald Trump followed through on his musings about running for president.

His candidacy, initially regarded as a joke and fodder for late-night comics, became a media sensation. With Trump's free-wheeling style, a movement was born and the Republican Party was transformed.

Trump's takeover of the GOP, one year later: After Trump won the Indiana primary, setting himself up for the Republican nomination and eventually, the White House.

Here are 11 photos from Trump's presidential announcement from Trump Tower, two years ago today:

AP
AP
AP
AP
AP
AP
AP
AP
AP
AP
AP