He's not under oath, so the consequences of lying are limited.
I take it you don’t keep up with current events much. There have been a number of high profile convictions under 18 USC 1001 this past year.
Adding: the penalties for false statements and perjury are roughly the same, although false statements can also carry a heavier sentence in some cases. There are defenses against perjury that are not available under the false statements law. All in all, they are very similar.
You may find the Congressional research Service’s summary of these [1] to be helpful.