LOL!
Facts do not prevail to demonstrate to you that Obama is the most liberal president on cannabis that has ever sat in the Oval Office.
List of U.S Presidents more liberal on cannabis use compared to Obama:
George Washington (1789-1797) John Adams (1789-1797)
John Adams (1797-1801) Thomas Jefferson (1797-1801)
Thomas Jefferson (1801-1809) Aaron Burr (1801-1805)
George Clinton (1805-1809)
James Madison (1809-1817) George Clinton (1809-1812)
none (1812-1813)
Elbridge Gerry (1813-1814)
none (1814-1817)
James Monroe (1817-1825) Daniel D. Tompkins (1817-1825)
John Quincy Adams (1825-1829) John C. Calhoun (1825-1829)
Andrew Jackson (1829-1837) John C. Calhoun (1829-1832)
none (1832-1833)
Martin Van Buren (1833-1837)
Martin Van Buren (1837-1841) Richard M. Johnson (1837-1841)
William Henry Harrison (1841) John Tyler (1841)
John Tyler (1841-1845) none (1841-1845)
James K. Polk (1845-1849) George M. Dallas (1845-1849)
Zachary Taylor (1849-1850) Millard Fillmore (1849-1850)
Millard Fillmore (1850-1853) none (1850-1853)
Franklin Pierce (1853-1857) William King (1853)
none (1853-1857)
James Buchanan (1857-1861) John C. Breckinridge (1857-1861)
Abraham Lincoln (1861-1865) Hannibal Hamlin (1861-1865)
Andrew Johnson (1865)
Andrew Johnson (1865-1869) none (1865-1869)
Ulysses S. Grant (1869-1877) Schuyler Colfax (1869-1873)
Henry Wilson (1873-1875)
none (1875-1877)
Rutherford B. Hayes (1877-1881) William Wheeler (1877-1881)
James A. Garfield (1881) Chester Arthur (1881)
Chester Arthur (1881-1885) none (1881-1885)
Grover Cleveland (1885-1889) Thomas Hendricks (1885)
none (1885-1889)
Benjamin Harrison (1889-1893) Levi P. Morton (1889-1893)
Grover Cleveland (1893-1897) Adlai E. Stevenson (1893-1897)
William McKinley (1897-1901) Garret Hobart (1897-1899)
none (1899-1901)
Theodore Roosevelt (1901)
Theodore Roosevelt (1901-1909) none (1901-1905)
Charles Fairbanks (1905-1909)
William Howard Taft (1909-1913) James S. Sherman (1909-1912)
none (1912-1913)
Woodrow Wilson (1913-1921) Thomas R. Marshall (1913-1921)
Warren G. Harding (1921-1923) Calvin Coolidge (1921-1923)
Calvin Coolidge (1923-1929) none (1923-1925)
Charles Dawes (1925-1929)
Herbert Hoover (1929-1933) Charles Curtis (1929-1933)
Franklin D. Roosevelt (1933-1945) John Nance Garner (1933-1941)
Henry A. Wallace (1941-1945)
Harry S Truman (1945)
Harry S Truman (1945-1953) none (1945-1949)
Alben Barkley (1949-1953)
Dwight D. Eisenhower (1953-1961) Richard Nixon (1953-1961)
John F. Kennedy (1961-1963) Lyndon B. Johnson (1961-1963)
Lyndon B. Johnson (1963-1969) none (1963-1965)
Hubert Humphrey (1965-1969)
Richard Nixon (1969-1974) Spiro Agnew (1969-1973)
none (1973)
Gerald Ford (1973-1974)
Gerald Ford (1974-1977) none (1974)
Nelson Rockefeller (1974-1977)
Jimmy Carter (1977-1981) Walter Mondale (1977-1981)
Ronald Reagan (1981-1989) George Bush (1981-1989)
George Bush (1989-1993) Dan Quayle (1989-1993)
Bill Clinton (1993-2001) Al Gore (1993-2001)
George W. Bush (2001-2009) Dick Cheney (2001-2009)