All rested up from that little 2008 party the Democrats threw in Denver 10 years ago? Good. It could happen again. Denver is among eight cities that the Democratic National Committee is considering as sites for its 2020 Democratic National Convention, NBC News reports. The others are Atlanta; Houston; New York; San Francisco; Milwaukee; Miami Beach; and Birmingham, Ala. All eight cities have been sent requests for proposals on hosting the four-day convention.