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Germany's outgoing government has reimposed border controls as it tries to bring down the number of asylum seekers, and opposition parties want to go further.

Many expect Trump to attempt to reimpose it.

Even on economic nationalists’ own terms, these measures make little sense, and quickly reimposing them next year, at a time when inflation still resonates with voters, might prove politically nettlesome.

After all, in his first term in office, Trump unilaterally pulled out of the Iran nuclear deal and reimposed sanctions on that country, leading its leaders to increase its nuclear capacity.

Asylum claims spiked after Canada removed visa requirements for tourists from Mexico in 2016, forcing Canada to reimpose visa restrictions earlier this year.