MS NOW

First Read: Trump’s takeover of the GOP is now complete

Now that House Speaker Paul Ryan (Romney's 2012 running mate) has endorsed him, Trump's dominance of the Republican Party is undeniable.

Donald Trump greets supporters after giving a victory speech, following his win in Indiana's primary, May 3, 2016. (Photo by Mark Peterson/Redux for MSNBC)
Donald Trump greets supporters after giving a victory speech, following his win in Indiana's primary, May 3, 2016. 

Chuck Todd

Chuck Todd is NBC News' chief political analyst and the former moderator of "Meet The Press."

Carrie Dann

Mark Murray