The FDNY ordered firefighters and medics this week to hose down “political expression” on the job — a move some critics claim was done to muzzle supporters of Donald Trump. ... The FDNY under Kavanagh — a longtime political operative who began her career working for Barack Obama and other Dems — has a track record of trying to silence rank-and-file members who express conservative views, critics charge. “Once again, we’re seeing blatant overreach by the FDNY – overreach that is no doubt meant to silence supporters of the Republican party,” fumed City Councilwoman Joann Ariola (R-Queens), who chairs the...