Housing policy and mortgages, along with financial reform, may not have been mentioned by name by either candidate in the 2nd second presidential debate aired Tuesday evening, but Trulia's Jed Kolko shows us that housing policy did make an appearance.

It was just a hidden one. Kolko, chief economist at the real estate company, notes: "...housing was a part of this debate, even if not by name. Nearly half of the value of itemized deductions is housing-related, and capping deductions at $25,000 would hit many middle-income people."

Kolko goes on to show how he reasons that of those that file itemized deductions with Uncle Sam, 49% of the value of those deductions are housing-related. Also, according to Kolko, housing represents even more of middle-income filers' itemized deductions, at 56%.

Read the full analysis over at Trulia.