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Is Trump Taking Policy Cues From Paul Ryan?
Nod to tax proposal just latest in series of shifts

President Donald Trump, left, shakes hands with Ryan, right, as he arrives on stage while Vice President Mike Pence looks on, at the GOP retreat in Philadelphia. (Bill Clark/CQ Roll Call/Pool)

PHILADELPHIA — In a few short months, Donald Trump has shifted from a candidate who considered Speaker Paul D. Ryan a “very weak and ineffective leader” to a president who seems to be leaning on him to beef up his policy agenda.

A sign of that evolution came Thursday when Trump, speaking before congressional Republicans at their issues retreat here, embraced Ryan’s “border adjustment” proposal to tax U.S. imports instead of exports as a way to pay for his border wall.