Can Trump use 'emergency powers' to build border wall?

Can Trump use 'emergency powers' to build border wall?President Donald Trump has indicated he could declare a national emergency in order to force the construction of hundreds of miles of border wall to prevent migrants from crossing into the United States illegally from Mexico. Trump is frustrated by the continuing high level of migrants, mostly from Central America, crossing the border and seeking asylum, with more than 50,000 a month detained during the final three months of 2018. Congress has refused to allocate the $ 5.7 billion he wants for the wall, but there remain deep questions over whether he has the prerogatives to take the “emergency” route.

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