Incoming House Intelligence Chairman Adam Schiff (D-Calif.) said on ABC's "This Week" on Sunday that President Trump’s refusal to rule out a pardon for his former campaign chairman Paul Manafort "adds to the growing body of evidence that the president is engaged in obstructing justice."

The backdrop: Trump told the New York Post last week that a potential pardon "was never discussed, but I wouldn’t take it off the table. Why would I take it off the table?" Trump's statement came as the president doubled down in his attacks on the Mueller investigation after the special counsel said in court filings that Manafort violated a plea agreement by lying repeatedly to federal investigators.

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