Sunday shows preview: Campaigns get personal
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After a week-long feud between GOP front-runners Donald TrumpDonald John TrumpKoch-backed group launches six-figure ad buy against Heitkamp Anti-abortion Dem wins primary fight Lipinski holds slim lead in tough Illinois primary fight MORE and Ted CruzRafael (Ted) Edward CruzCruz says Cambridge Analytica assured him its practices were legal Dem battling Cruz in Texas: ‘I can understand how people think this is crazy’ Overnight Tech: Facebook faces crisis over Cambridge Analytica data | Lawmakers demand answers | What to watch for next | Day one of AT&T's merger trial | Self-driving Uber car kills pedestrian MORE in which their wives were dragged into political attacks, both candidates will tell their sides of the story on Sunday’s political shows.

The latest spat began earlier this week when an anti-Trump super-PAC released an ad featuring a nude Melania Trump, prompting almost daily barrages from the Trump campaign on Cruz and his wife, Heidi.

Though Cruz has repeatedly denied any connection to the super-PAC or its ad, Trump has compared the appearances of his wife and Heidi and threatened to “spill the beans” on her.

Tensions seemed to erupt Friday when Cruz blamed Trump and his “henchmen” for a National Enquirer story that alleges he’s had extramarital affairs.

Secretary of State John KerryJohn Forbes KerryKentucky candidate takes heat for tweeting he'd like to use congressman for target practice Breitbart editor: Biden's son inked deal with Chinese government days after vice president’s trip State lawmakers pushing for carbon taxes aimed at the poor MORE will also appear on Sunday’s shows to discuss the U.S.’s response to this week’s terror attacks in Brussels.

Sen. Bernie SandersBernard (Bernie) SandersAnti-abortion Dem wins primary fight Lipinski holds slim lead in tough Illinois primary fight Overnight Defense: Senate sides with Trump on military role in Yemen | Dem vets push for new war authorization on Iraq anniversary | General says time isn't 'right' for space corps MORE will also make the rounds to discuss the results of Saturday’s three Democratic contests in Alaska, Hawaii and Washington state.

ABC’s “This Week:” Donald Trump and Sen. Bernie Sanders

CBS’ “Face the Nation:” Secretary of State John Kerry; Texas Rep. Michael McCaul (R-Texas); John Miller, deputy commissioner, New York Police Department; Michael Morell, former deputy CIA director.

CNN’s “State of the Union:” Sanders; Rep. Mia Love (R-Utah); Sen. Ron JohnsonRonald (Ron) Harold JohnsonSenate GOP shoots down bill blocking Trump tariffs Possible North Korea summit raises anxiety in Washington Wisconsin Republican would sign on to bill to nullify Trump tariffs MORE (R-Wis.)

“Fox News Sunday:” Sen. Ted Cruz; Rep. Devin Nunes (R-Calif.)

NBC’s “Meet the Press:” Michael Leiter, former director, U.S. National Counterterrorism Center