The Senate voted to repeal the Affordable Care Act and defund Planned Parenthood Thursday evening, clearing a nearly six-year hurdle that kept previous attempts to undo the health care law from reaching President Obama’s desk. Though the president has vowed to veto the bill, it passed 52-47. The legislation would repeal major parts of the president’s signature policy achievement, including the individual and employer mandates and Medicaid expansion, which would be aborted after a two-year delay.