President Trump has sent a letter to Sen. Schumer:

. @SenSchumer’s office says POTUS & Schumer spoke twice today by phone, per Schumer’s office.
Schumer pressed Trump on the DPA and “explained how he had spoken with the person supposedly in charge of production but felt that person was not up to the job.”

“After Sen. Schumer further made clear what he was requesting, the president said he was already in the process of sending a ‘very nasty letter’ to Sen. Schumer, but he would try to stop it from going out and would apologize to Sen. Schumer if he didn’t stop it in time.”