The potential trade war that could follow President Donald Trump's proposed 20 percent tax on Mexican imports bodes poorly for Minnesota businesses — especially farmers.

Trump has floated the tax as a possible funding mechanism for his massive wall along the U.S.-Mexico border, which some experts say could trigger a backlash from Mexico.

"By imposing a tariff on imports, you could trigger a retaliation against U.S. exports, particularly Minnesota exports to Mexico," said Doug Loon, the Minnesota Chamber of Commerce president.