Which Presidents do you believe should have been impeached

[OSR stands with Israel]

They must be for actual  impeachable offenses and not just because you disliked them

Ill start

John Adams- Alien and Sedition acts
Andrew Jackson- Defying the Supreme Court by removing the Native Americans
James Buchanan- Treason
Andrew Johnson- Violating Tenure of Office Act,
Uyless S Grant- Corruption
Woodrow Wilson- Shredding Constitutional rights during WW1
Harding- Tea Pot Dome
Lydon Johnson- Lying about Gulf Of Tonkin
Nixon- Watergate
George W Bush- Abuse Of Presidential Power(Signing Statements)
Obama- If he goes through with the Iran deal without Congress approving it

[OSR stands with Israel]

I'm not sure that failing to prevent secession is "treason."

Watch this video from 2:50 on:  https://www.youtube.com/watch?v=0-V0xk6Kzgw

[OSR stands with Israel]

Reagan and perhaps HW Bush definitely should have been impeached for Iran-Contra. Nixon and Reagan for their pre-election actions (Nixon probably sabotaged peace talks, while Reagan's talks with Iran was definitely a criminal offense if proven).

Not Reagan(No proof about Iran contra), maybe Bush SR

[OSR stands with Israel]

Probably not a complete list, but these come to mind

Andrew Jackson: Ignoring the Supreme Court, illegal Indian removal
Martin Van Buren: Illegal Indian removal
James K. Polk: Lying to justify invasion of Mexico
James Buchanan: Treason
Andrew Johnson: Treason
Rutherford B. Hayes: Appeasing traitors with the "Compromise of 1876"
Woodrow Wilson: Illegal surveillance against radical groups
Harry S Truman: Illegal War in Korea
John F. Kennedy: Illegal attempted invasion of Cuba
Lyndon B. Johnson: Illegal surveillance against political opponents, illegal War in Vietnam
Richard Nixon: Treason, illegal surveillance against political opponents, illegal War in Cambodia
Ronald Reagan: Iran Contra Scandal
George Bush: Illegal War in Kuwait
Bill Clinton: Illegal War in Kosovo
George W. Bush: Illegal Wars in Afghanistan and Iraq, illegal domestic surveillance
Barack Obama: Illegal War in Libya, illegal domestic surveillance

Korea and the First Gulf War was justified

[OSR stands with Israel]

Lincoln-War crimes during Civil War
Teddy Roosevelt-Unconstitutional expansions of the executive Branch
FDR-Unconstitutional expansions of the executive Branch.
LBJ-Lying about Gulf of Tonkin
Nixon-Watergate
Bush-War in Iraq, Patriot Act
Obama-NDAA, Patriot Act extensions, Libya, Syria
Bush Senior-Kuwait war
Wilson-WWI, violating civil liberties
Truman-Korean War
Polk-Mexican-American War
Mckinley-Spanish-American War.
Clinton-Kosovo,
Jackson-Trail of tears, disobeying supreme court.
John Adams-Alien and Sedition Acts

I said impeachable actions not something you disagree with. Spanish,Mexican,WW1 wars were all declared formally by congress so you cant be impeached for that.