Alternative Fact on Mexico

Kellyanne Conway said the following in the context of paying for a border wall:

"Here's the fact," Conway said on Jan. 27, 2017. "The No. 1 source of income into Mexico are Mexicans working here and sending the money back."

As Politifact points out, this is false. Actually, it's grossly false.

According to federal data, the United States in 2015 imported Mexican goods totaling $295 billion. That pot of money is more than 10 times bigger than the amount of remittances.
The biggest category of Mexican exports to the United States -- auto vehicles and parts -- was by itself north of $100 billion in 2015, according to the Census Bureau. 

In addition, foreign direct investment by the United States totaled $28 billion in 2015 -- a bit higher than the projected remittances for 2016 and clearly higher than the total of remittances for 2015, which was $24.8 billion. Foreign direct investment is defined as "investment from one country into another, normally by companies rather than governments, that involves establishing operations or acquiring tangible assets, including stakes in other businesses."

If you're inclined to think Mexico has a tiny economy based on low-wage workers coming illegally into the United States, this falsehood is clearly appealing.