House Speaker Mike Johnson on Friday teamed up with former President Donald Trump and dozens of other congressional Republicans in supporting in vitro fertilization following the Alabama Supreme Court’s ruling that spurred a halt in fertility treatments.

The aftermath of the bombshell last week left conservatives scrambling to get the message out that while they don’t support abortion, they do support IVF. The National Republican Senatorial Committee urged its candidates to defend IVF amid Democrats’ aim to use it and abortion as huge issues this election year.

Mr. Johnson, Louisiana Republican, has made clear his position as a pro-life Christian but joined Mr. Trump and a slew of Republicans to decry the court’s ruling that frozen embryos created through IVF are considered children, sparking concerns of wrongful death lawsuits. …