OPINION: Trump fights back against skeptics of his new Mexico deal

President Donald Trump is blasting critics who claim his new border agreement with Mexico is a mirage rather than the huge victory he is claiming, as he rides into a fresh week of constitutional collisions with Democrats.

Trump unleashed a torrent of tweets and called into CNBC on Monday morning to proclaim the immigration deal as a triumph, argue that it would never have been achieved without his use of tariffs as a weapon and warn that China would also have to cave, addressing a separate economic duel.

Like many...