In a matter of months, we've moved from bipartisan immigration talks to calls to abolish ICE. On this week’s On the Media, a look at how leftists are employing a right-wing communications strategy in order to change the national debate. Plus, thirty years into the conversation on global warming, what have we really learned? And in the days following the Trump-Putin summit, what did we miss?

1. Brooke on this week's coverage of the Trump-Putin summit, and on a new metaphor for the Trump era: the Shepard tone. Listen.

2. Joseph Lehman, president of the Mackinac Center for Public Policy; Laura Marsh [@lmlauramarsh], literary editor at The New Republic; and Sean McElwee [@SeanMcElwee], activist and contributor at The Nation, on the Overton Window. Listen.

3. Andrew Revkin [@Revkin] of the National Geographic Society on thirty years of global warming coverage. Listen.

Music from this week's program:

Whispers of Heavenly Death — John Zorn
String Quartet No. 5 — Philip Glass
The Mole — Hans Zimmer
Flugufrelsarinn — Kronos Quartet
Long Ge — Kronos Quartet
A Ride With Polly Jean — Jenny Scheinman

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