WSJ – Republican presidential candidate Donald Trump said he would demand Mexico pay between $5 billion and $10 billion to build a wall along the U.S.-Mexico border, and if the payment wasn’t made, he would block remittances from undocumented Mexicans living in the U.S.
http://www.wsj.com/articles/donald-trump-says-he-might-block-money-transfers-to-mexico-1459892237