I trust the President to do what he says he will do. This is not the President saying he will "certify" the borders security. This is a bill saying the President will "certify" the borders security before instituting a "guest worker" program.
If the President says he WILL certify the borders security, I trust the President, this one at least, to do so.
Do I agree with all the Presidents immigration policies? No.
Do I trust him to do what he says he will do? Yes.
Thank you for a most excellent and fair post!