This Week with George Stephanopoulos

Dr. Osterholm: 'No question' hantavirus is 'on the end of its run'; Amb. Waltz: Trump 'giving diplomacy every chance ... before going back to hostilities'.

'It's clearly unconstitutional': Raskin on potential Trump-IRS settlement; Trump is 'on a vengeance tour': Cottle on Cassidy defeat in Louisiana; Trump's second term overhaul of nation's capital.

Problem Solvers Caucus co-chairs on effort to stop fund; Shots fired near the White House Saturday evening; First look at Martha Raddatz's new book, 'The Hero Next Door'.

'I have concerns. That guy has questions to answer': Sen. Booker on Platner; Kevin Hassett: 'A month or two' until oil shipments return to normal.

Sen. Warner: 'Up to the folks in Maine' whether Platner allegations are disqualifying; Rep. McCaul: 'Anytime I can help Ukraine and punish Putin, I'm in on that fight'.

Will the US and Iran finally reach a deal?; 'They have every intent of getting this done today': Waltz on Iran negotiations; McHenry on White House UFC fight: 'The American people don't care'