The US Senate is expected to hold a vote on Tuesday on a bill that would guarantee access to in vitro fertilization nationwide –- a move that comes as Democrats seek to pressure Republicans over the issue in the run-up to the November elections.

Democrats brought up the measure again to highlight Republican opposition to abortion rights and make the case to voters that the G.O.P. stance threatens access to reproductive health care.

In vitro fertilization, used to treat infertility, has come become a political issue in 2024. A U.S. Senate bill protecting the procedure failed.