Necessary electoral reforms for the USA

The U.S. needs the following electoral reforms:

Unicameral legislatures (abolish the senates) - http://en.wikipedia.org/wiki/Unicameralism

Party-list proportional representation for legislative elections - http://en.wikipedia.org/wiki/Proportional_representation http://en.wikipedia.org/wiki/Party-list_proportional_representation

Instant runoff voting for executive elections (mayor, governor, president) -
http://en.wikipedia.org/wiki/Instant-runoff_voting

Election of the president solely by the popular vote (abolish the Electoral College).


That is all.

Doesn't seem like this will do anything to improve on shit, since governments that have these "reforms" already are still corrupt as shit.