And yet in the ultra strong union Washington workers only are required to get overtime for more than 40 hrs in a 7 day week. Seems obvious that there is something more than unions that are responsible for overtime regulations. Colorado which is a weak union state (9%) has better overtime laws than Washington with an additional overtime hurdle at 12 hours per day. The worst union participation state, south Carolina, has the same overtime laws as Washington.

Biden throws support behind Amazon workers holding milestone union vote
President Joe Biden on Sunday night lent his support to Amazon workers who are pushing to unionize — and appeared to warn Amazon not to deter them.