Sunday shows preview: Campaigns get personal
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After a week-long feud between GOP front-runners Donald TrumpDonald TrumpMegyn Kelly blames member of Trump transition team for death threats Lewandowski: We can say 'Merry Christmas' again under Trump Trump to visit Ohio State victims MORE and Ted CruzTed CruzPentagon's suppressed waste report only tip of the inefficient machine Markos Moulitsas: Kill the filibuster Ark., Texas senators put cheese dip vs. queso to the test 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 KerryAs Congress adjusts to Trump, Iran put under the pressure it deserves Sharpton pressures Dems on Trump nominees Words are not enough — US must support Christians who survived genocide in Iraq 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 SandersBernie SandersSanders: GOP blocked 'Trump proposal' to lower drug prices Pentagon's suppressed waste report only tip of the inefficient machine Weather Channel strikes back at Breitbart 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 JohnsonRon JohnsonWeek ahead: GOP quickly laying groundwork for reg rollback The Hill's 12:30 Report Passing US-Canada preclearance would improve security and economy 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