On Wednesday, Sen. Ron Johnson co-sponsored an amendment authored by Sen. Ted Cruz (R-TX) to defund Obamacare. In a short floor-speech in support of the amendment, Sen. Johnson said "we simply can't afford" Obamacare, explaining that the new healthcare law will cost upwards of $2.4 trillion over the next 10 years. "Employers will drop coverage because they are incentivized to do so," warned Sen. Johnson.

All 45 Republican senators voted in favor of the Cruz amendment.