In a bizarre warning coming from president Trump’s own budget director, one that could accelerate the sharp market selloff which so infuriated Trump last week he tweeted about it on several occasions, lashing out against those who sell stocks on “good news” claiming it is a “big mistake”, Mick Mulvaney warned that the U.S. will post a larger budget deficit this year and could see a “spike” in interest rates as a result.

White House budget director Mick Mulvaney.

Of course, traders have already experienced the spike or at least a part of it: it’s one of the key catalysts that moved the 10Y from 2.60% to 2.90% since payrolls Friday (coupled with the inflationary impulse from the jump in hourly wages).

Earlier in the day, Mulvaney spoke on “Fox News Sunday,” a day before the White House is expected to release 2019 spending proposals – and after weeks in which financial markets have been spooked by prospects for rising inflation tied to higher deficits and lower taxes.

“This is not a fiscal stimulus; it’s not a sugar high,” Mulvaney said on of the president’s economic program, including the $1.5 trillion tax cut passed in late 2017. “If we can keep the economy humming and generate more money for you and me and for everybody else, then government takes in more money and that’s how we hope to be able to keep the debt under control,” Mulvaney said.

In a separate interview on CBS News’s “Face the Nation,” Mulvaney said rising budget deficits are “a very dangerous idea, but it’s the world we live in.”