UPDATE II: It's official, and Cruz has suspended his campaign. "We are suspending our campaign."
UPDATE: AP is reporting it as well.
BREAKING: AP source: Texas Sen. Ted Cruz ends presidential campaign, clearing Donald Trump's path to Republican nomination.
— The Associated Press (@AP) May 4, 2016
#BREAKING: Ted Cruz drops out of presidential race https://t.co/zgP9jeLAuY pic.twitter.com/lDvAbT92vb
— POLITICO (@politico) May 4, 2016
This post will be updated as Cruz finishes his speech in Indianapolis.