People get into trouble using the terms liberal and conservative.
These words change meanings over time.
Going back and reclassifying the POTI (plural of PUTUS) I would label them as follows based on a modern construal:
Trump -- a RINO so far -- talks like a liberal but walks like a conservative -- more tax cuts for the rich -- Trumpcare is No-care -- etc.
Obama -- ACA makes him clearly liberal.
Dubya -- record breaking tax cuts for the rich in the process of which he skyrocketed the deficit -- so he was a chameleon -- hard to label such an inept POTUS as anything but inept.
Clinton -- was anti gun -- originally "liberal" meant pro-gun.
GHW -- raised taxes on the working poor and middle class so this qualifies as "conservative"
Reagan -- due to his legacy of destroying the middle class you can only call this tax cuts for the rich / but he was also a communist in terms of being anti gun while a governor in California -- google "mulford act".
Carter -- very liberal in terms of raising taxes on the rich which his Alt Min Tax which has been the most successful tax on the rich in history (this is why Trump wants to get rid of it).
Ford -- hard to say.
Nixon -- hard to say -- he employed "price controls" which is not conservative but other than Watergate he is not known for much except negotiating the US out of Viet Nam.
LBJ -- very liberal and tried to help black's a lot too
JFK -- somewhat liberal but with conservative traits too like cutting taxes
Ike -- very conservative -- did not do much just a caretaker as are most conservatives.
Truman -- hard to say either way.
FDR -- very liberal including helping the elderly with OASDI and the unemployed with a New Deal
Hoover -- very conservative including ignoring the poor and unemployed completely.
My history is hazy before Hoover. I remember GHW being compared to Hoover so that's the only reason I went back that far in history.
Cutting taxes is NOT a conservative thing. Sorry. Facts are facts.
Conservative traits?

exactly what I have been saying. JFK was a liberal with some conservative views on some issues. Most true liberals would differ and then work out a compromise.
some people are delusional and of course how partisans use labels and meanings change, but ideological views do not. JFK held some seriously liberal views.