Mitt Romney is out with a new ad that says President Obama's cuts to defense spending weakens national security and threatens jobs in Colorado.

It's an advertisement running in swing states. The ad looks the same everywhere but uses different numbers tailored to each state.

"The President cannot tell us that you're better off today than when he took office," Mitt Romney said at the Republican National Convention. "Here in Colorado, we're not better off under President Obama," an announcer continues.

TRUTH: This is an opinion and cannot be tested.

CLAIM: Obama's defense cuts will weaken national security

We'll label this statement as another opinion. But it needs strong context.

The Obama administration has approved $450 billion in defense cuts over ten years. But there are more cuts to the military budget that could come in January if Congress doesn't act.

Its part of what's called the Budget Control Act, signed into law by President Obama in 2011. Mitt Romney's running mate Paul Ryan actually voted for this act.

Ryan has said he doesn't agree with the defense cuts and Romney would work with Congress to overturn them.

There's no way to actually test whether defense cuts will weaken national security.

CLAIM: Obama's defense cuts will threaten nearly 20,000 jobs

This statement is half-true.

The number is actually 18,442 jobs, and that's only an estimate. It comes from a researcher at George Mason University.

The researcher did the study for the Aerospace Industries Association, a major player in the defense industry.

Congress, both Republicans and Democrats, passed these potential cuts Romney says could threaten jobs.

CLAIM: Romney's plan will reverse Obama's defense cuts and strengthen the military

This statement is true.

Both Mitt Romney and Paul Ryan are on record saying they want to reverse defense cuts.

Romney has said he wants to return the defense budget to military spending from 2010.

Romney is also on the record saying he'd use budget savings from the Pentagon to add 100,000 active duty military members.

CLAIM: Create 200,000 new jobs for Colorado

The ad doesn't refer to a plan to create these jobs or describe exactly what kinds of jobs they would be.

Romney said at the Republican convention, he has a plan to create 12 million jobs across the U.S. by 2016.

If you divide 12 million by all 50 states, it's likely Colorado would receive at least 200,000 new jobs.

But at least two major financial analysts are on record saying 12 million jobs would be created during the next four years, no matter who is president.