The Trump administration’s intensifying campaign against Federal Reserve Chair Jerome Powell hit a boiling point Thursday.

Office of Management and Budget Director Russell Vought accused Federal Reserve Chair Jerome Powell on Thursday of an “ostentatious” overhaul of the independent agency’s fiscal headquarters amid an increasingly aggressive campaign by President Trump to get Powell to step down from the job.

A dispute over the Federal Reserve’s renovation of its headquarters could provide the pretext to attempt the removal of Fed chief Jerome Powell over interest-rate disagreements.