Hello all, I'm planning on driving from DC to Denver in May. I have flown between the two cities countless times, but I have always wanted to do a roadtrip between the two. I do have a couple questions though for people who have been on similar routes. Is I-80 or I-70 the better route? About how many nights would it take to get to Denver? Is there any bad weather I should watch out for in May while driving in the midwest? Thank you all.