Sen. Ted Cruz, R-Texas, on Tuesday congratulated former President Trump for a 'dominating victory' in Iowa, and Sen. Cruz stated he believed the Republican primary race was over and that he was proudly endorsing Trump. The Morning Joe panel reacts to Cruz's endorsement while recalling Trump's disparaging remarks about Cruz's father and wife. » Subscribe to MSNBC: https://www.youtube.com/msnbc Follow MSNBC Show Blogs MaddowBlog: https://www.msnbc.com/maddowblog ReidOut Blog: https://www.msnbc.com/reidoutblog MSNBC delivers breaking news, in-depth analysis of politics headlines, as well as commentary and informed perspectives. Find video clips and segments from The Rachel Maddow Show, Morning Joe, The Beat with Ari Melber, Deadline: White House, The ReidOut, All In, Last Word, 11th Hour, and Alex Wagner who brings her breadth of reporting experience to MSNBC primetime. Watch “Alex Wagner Tonight” Tuesday through Friday at 9pm Eastern. Connect with MSNBC Online Visit msnbc.com: https://www.msnbc.com/ Subscribe to the MSNBC Daily Newsletter: https://link.msnbc.com/join/5ck/msnbc-daily-signup Find MSNBC on Facebook: https://www.facebook.com/msnbc/ Follow MSNBC on Twitter: https://twitter.com/MSNBC Follow MSNBC on Instagram: https://www.instagram.com/msnbc Joe: Trump attacked Sen. Cruz's father and wife; it should be game over #Trump #TedCruz #Politics