Rep. Jacky Rosen has been hammering U.S. Sen. Dean Heller over his positions on repealing and replacing the Affordable Care Act last summer as she battles to oust the Republican senator from office in one of the most closely watched Senate races in the country.

In a series of television ads, the Democratic congresswoman has compared Heller to an orange inflatable tubeman nicknamed "Senator Spineless" and accused the senator of "flip-flopping" on the federal health-care law last summer. Heller has called those accusations a "media-driven narrative."

Here The Nevada Independent takes a look at what exactly Heller said and how he voted on a series of proposals to amend or otherwise strip away provisions of the Affordable Care Act last summer, including the Senate's repeal and replace proposal, a repeal-only measure, and a so-called "skinny repeal" of the federal health-care law.