Sure, you can use examples of liberals fucking up economies of cities....
But the overall US economy has been the worst when Republicans are in charge. Snipped from the Washington Post:
From 1949 to 2013 — a period when the White House was roughly split between parties — the economy grew at an average annual rate of 3.33 percent, but growth under Democratic presidents averaged 4.35 percent and under Republicans, 2.54 percent. Jobs, stocks and living standards all advanced faster under Democrats.
and I'm not one to post charts and graphs, but here you go....
These are all knowable facts. Why don't you start knowing things, instead of swimming in the conservative sludge tanks?