George Stephanopoulos speaks with Lt. Gov. Dan Patrick, R-Texas, about the latest details on Friday’s deadly school shooting in Santa Fe, Texas. And Fred Guttenberg, whose daughter was killed in Parkland, Fla., and Nicole Hockley, whose son was killed in Newtown, Conn., share their response to the latest school tragedy.

Plus, White House National Economic Council Director Larry Kudlow discusses what the president’s recent diplomatic actions mean for trade and the American economy. And ABC News Chief Legal Analyst Dan Abrams and Harvard Law Professor Emeritus Alan Dershowitz analyze the latest legal developments in the Mueller investigation.

And the Powerhouse Roundtable debates the week in politics, with Democratic Strategist Donna Brazile; CNN Contributor and former Communications Director for Sen. Ted Cruz Amanda Carpenter, author of “Gaslighting America: Why We Love It When Trump Lies To Us”; New Yorker Contributor Ronan Farrow, author of “War on Peace: The End of Diplomacy and the Decline of American Influence”; American Conservative Union Chair Matt Schlapp; and Axios National Political Reporter Jonathan Swan.

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