President Biden continued to needle his Russian counterpart on Friday, not ruling out Vladimir Putin’s challenge to a debate and promising to slap new sanctions on Moscow.

The new U.S. leader told reporters that new economic penalties for a list of Russian actions “will come in time,” capping a tense week during which he and Putin traded barbs and the Kremlin recalled its ambassador to Washington. Collectively, those actions were part of a continued souring of relations between the longtime rivals.