The Dems are going to run roughshod in 2018 and take both branches back by 2020. Even if Trump is outed before hand, Pence is not a party leader. The Dems still need a solid candidate for 2020 - and it can't be Hillary - CAN NOT - regardless of her actual qualifications. That ship sailed twice.
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That happens with every President. Trump has his own quirks, and I've never really cared about them - or thought to make fun of him (although I admittedly thought the steak thing was odd, not now, but when it first came up).