A 50-year mortgage? That is one of President Donald Trump's policy proposals to tackle housing affordability.

"It's not even a big deal. I mean, you know, you go from 40 to 50 years and that happens is you pay less from 30 that some people had a 40 and then now they have a 50. All it means is you pay less per month. You pay it over a longer period of time. It's not like a big factor. It might help a little bit," Trump said in an interview with Fox News' Laura Ingraham.

Senior Director of Government Affairs at The National Taxpayers Union, Tommy Aiello, however, is skeptical of the president's policy proposal.

You're paying about 10% less per month, which is a great thing, but you're extending the life of your loan over that extra 20 years, so you're paying an extra 20 years worth of interest on that loan over the long term. It actually will hurt borrowers and not make housing more affordable," Aiello told The National News Desk.

The Trump administration is also looking into making your mortgage "portable." Meaning, if you purchase a home and then move, you would be able to keep your existing rate.

I think it's great that we're continuing to look at alternatives to the current system. But there's a lot that needs to happen at the federal level to address some of the laws and the legality of it," Aiello said.

Other countries, such as Canada, implemented a "portable" mortgage. However, Aiello said the policy is not as feasible with the U.S. market in the short term.

There's a lot of plumbing in the back of our financial system that keeps mortgage rates affordable, somewhat affordable, and also keeps banks liquid so they can lend out to other things. If we change that overnight, it's going to have a real draining impact on the financial system and might actually dry up liquidity for people to get that mortgage," Aiello said.

But was is the root cause of affordability? Aiello addressed issues with state and local governments installing enough housing for individuals to access.

We need to continue to bring interest rates down. Doing so will make refinancing and financing a mortgage that much cheaper. It'll save about $200 a month for every point dropped an interest rate," Aiello said.

Despite that, Aiello said he does not think a rate cut is coming for December.

I wouldn't bet on another rate cut in December into 2026. We might see a little bit more, but the data so far just doesn't point to a next rate cut in December," Aiello said.