Two days after doing the rounds of the Sunday Beltway shows, Donald Trump’s Homeland Security adviser Tom Bossert is out.

Technically, Bossert submitted his resignation. But political pundits say it’s no coincidence the resignation comes the morning after John Bolton’s first day as the third national security adviser of Trump’s 15-month-old administration.

Bossert, a White House point person on terror and cyber threat issues also helped spearhead the administration’s response to last year’s headline-grabbing hurricanes in Houston, Texas, in Puerto Rico, and Florida.  He was a darling of White House press corps, with his Central-Casting looks and his calm, direct demeanor at press briefings.

NBC News reported this morning that Bossert socialized Monday night with current and former U.S. intel honchos at a conference in Georgia, unaware of any White House intention to seek his resignation. Still, Bossert can’t have been entirely surprised; on Sunday, Bolton swept out National Security Council spokesman Michael Anton.

White House Press Secretary Sarah Huckabee Sanders  broke the Bossert news in a statement Tuesday that Bossert would be leaving,  issuing this statement:

The President is grateful for Tom’s commitment to the safety and security of our great country.

Tom led the White House’s efforts to protect the homeland from terrorist threats, strengthen our cyber defenses, and respond to an unprecedented series of natural disasters.

President Trump thanks him for his patriotic service and wishes him well.”

Bossert previously served as Deputy Homeland Security Advisor under President George W. Bush.