The issue has bled over into his Senate bid.
The two are tied with 43 percent in a hypothetical matchup.
Senate Leadership Fund will run fall ad buys in five Senate battleground states.
Reid said Rubio should be forced to "pay back all the money" he made as senator.
The ad will run for the next two weeks in Washington, D.C.
Mark Kirk says the court upheld "access to health care for women."
Carlos Beruff hopes to upset Marco Rubio in the August Senate primary.
Lisa Hagen 06/26/16 02:38 PM EDT
The winner of the five-way primary faces an uphill battle against the well-funded Michael Bennet...
Ben Kamisar 06/26/16 10:30 AM EDT
All other Republican candidates have dropped out of the Senate race to make way for Rubio.