Since we don't have a viable third party, it doesn't really matter which way the third party leans. There probably will never be a viable third party. Republicans and Democrats write our election laws and they do so as a mutual protection act. If there is one thing both major parties agree on, it is no viable third party will ever arise.

Then there is the financial aspect with corporations, wall street firms, lobbyist, special interests, mega, huge money donors etc. giving their money to the two major parties. Heck, Clinton raised and spent 1.191 billion in 2016 to Trump's 636.8 million. Johnson was in third place with 3 million.

https://www.bloomberg.com/politics/graphics/2016-presidential-campaign-fundraising/

I'll never understand why all these third parties insist on running candidates for the presidency. If they want to become viable, they need to start off at the grass roots level. Mayors, county commissioners, city councils, state legislatures where it doesn't take tens of millions of dollars to run. Once successful there, then move to statewide, governors, secretary of state, senators, etc.

I suppose none of the third parties want to take the time to do it right. It would take 10-20 years to become viable. Quite a lot of the existing third parties are to the right of the GOP and to the left of the Democrats.

Personally, I think the two party system worked just fine when both parties had their liberal and conservative wings. Each party would have a battle over their candidates between each faction and usually avoid nominating candidate to the extreme left and right. Electability played a more important role than ideology.

We went to the modern primary system in 1976, I wonder if that was a mistake. Looking at modern history, under the old system we had FDR ranked 1 among all presidents, Truman 6, Eisenhower 8, JFK 10, LBJ 13, Nixon 33. Carter in 1976 began the modern primary system is ranked 27, Reagan 16, G.H.W. Bush 22, Bill Clinton 18, G.W. Bush 32. Obama and Trump hasn't been around enough or out of office enough time to know or find out how their policies effect the long term future of this nation.

Historians tell us a president needs to be out of office 20 years to rank or rate them fairly accurately as given that time it lets them know how their policies effected this nation in the long term. It also give the partisanship time to die down.

It's high past time that we start electing Americans to congress and the presidency who put America first instead of their political party. For way too long we have been electing Republicans and Democrats who happen to be Americans instead of Americans who happen to be Republicans and Democrats.