Trump: 4 years or 8 years?

[SCNCmod]

I think 4 years... Although he will likely win many rust belt states again...

But I think Dems will win Florida in 2020 + (AZ or WI or MI) ... depending on who the candidate is... especially if you have a young, smart, charismatic speaker on the ticket... that will also help motivate younger minorities to turn out in swing states (like Cory Booker or one of the Castro Brothers... all of whom are great speakers, young, likable & very intelligent (Stanford & Yale/Harvard Law... not to mention Rhodes Scholar for Booker)

[SCNCmod]

i think Pence becomes president before the end of the first term

Yup. I also think Pence has good odds of winning in 2020

Even though Pence was important to Trumps election (as Pence reassured many on the far right) ...

I think as a candidate himself.. Mike Pence is far Less electable that Trump.... as he would lose many of the swing voters that Trump won.  Pence under the microscope is far right of the average voter.