From Axios:

Some 70% of bills enacted in the last Congress had at least one Republican and one Democrat co-sponsor, highlighting the need for bipartisanship to get things done under current House and Senate rules, according to data from Quorum provided to Axios’ Stef Kight.  Despite being less likely to get passed, single-party bills and joint resolutions introduced by members have been outpacing bipartisan ones — with greater margins than in the 1990s and early 2000s.