First of all, the legislative branch needs more power vs. the executive branch. This was the intention of the constitution. The two main parties have evolved and pivot over time. Neither very closely resemble their original forms. For example, Democrats have at times been anti-immigration in order to protect union members and low wage workers, whereas now Democrats are generally pro-immigration.
Today's Democrats are less often centrists, and several Republicans are far-right. While the two parties become increasingly polarized, inequality increases. Both parties are entrenched and people need more options.
There should be at least 4 options on the general election ballots, with the other two representing other parties or running as independents. These other party candidates need to have access to the same resources, including debates, as the two major parties' candidates.
Campaign finance reform is needed. Politicians shouldn't be sponsored, they're supposed to represent the people. PACs and all of that should be replaced with general election funds for state and federal elections. Candidates on primary and general election ballots should get equal funding.
There are efforts at the state level to get around Citizens United. Others are working on an amendment to overturn the 2010 ruling.
The definition of a Progressive politician sometimes includes "left-leaning." Teddy Roosevelt was a Progressive Republican and he did a lot of good things. The best way to straighten things out in the near future is to get someone smart in there as a Progressive Democrat. An effective Progressive Republican leader probably won't be an option anytime soon.
