President Trump Warns Sen. McCain about New Attacks

    (AP Photo/Susan Walsh)

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    A day after showcasing Republican unity, President Trump is warning a GOP Senator about new attacks.

    FOX's Jared Halpern has more from Capitol Hill:

    Arizona Senator John McCain warned against half-baked, spurious nationalism in a speech last night, this morning telling reporters his remarks are not specifically aimed at President Trump:

    (McCain) "I was referring to the whole atmosphere and environment around here. This idea that quote America firsters."

    In a radio interview, President Trump warned, at some point, he would fight back and it won't be pretty.

    McCain response: that's fine, saying he's faced some fairly significant adversaries in the past.

    On Capitol Hill, Jared Halpern, FOX News.

    Follow Jared Halpern on Twitter: @JaredHalpern