Trump just floated a 50-year mortgage. Is that a good idea?

Most first-time homebuyers take out 30-year mortgages. Under a new proposal from the Trump administration, they may soon get 20 more years to pay them off.

​ Most first-time homebuyers take out 30-year mortgages. Under a new proposal from the Trump administration, they may soon get 20 more years to pay them off. Read More Breaking News, Latest News and Videos | CNN