California state Sen. Scott Wiener, a Democrat, one of President Donald Trump’s most outspoken critics, is expected to announce a bid for the congressional seat held by Speaker Emerita Nancy Pelosi (D-CA) next week.

Wiener, 55, has already laid some of the groundwork for a run, raising $1 million through an exploratory committee. However, the timing of his announcement has shifted. He had previously indicated he would wait for Pelosi to step down before making any type of public announcement.