Why does Biden let them run in?

So as everyone knows we used to keep them in Mexico until their asylum thingy came up.

Biden lets them run up into our country which is why we see the numbers of people arriving on the border exploding

Why does he do this? Senile? He gets money from the countries? He's confused about what he is doing? His handlers are not happy about the white minority in the usa?

What's your opinion?

Why does Biden let them run in?
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