Bill Clinton won with 43% in 1992. He did better than John Quincy Adams who won with 31 % in 1824 and Wilson who won with 41.8 % in 1912.
CLinton
He didn't go for the presidency
George W. Bush was the only president elected to two terms with less than 50 percent of the popular vote.
Lincoln winning the presidency with only 40 percent of the popular vote
The candidate who receives the most electoral votes wins the presidency. It is possible to lose the popular vote but win the electoral vote to be elected president.
Lincoln won the presidency with less than half of the popular vote
All state officials are elected by popular vote.
Electors are elected by popular vote but the president is elected by the electoral college. A president candidate can win the popular vote and still not win if he doesn't win the electoral college.
The president of the United States is not elected by direct popular vote, but rather by the electoral college. A mere 538 people, chosen by voters in all the states are the ones who actually elect the president. The candidate with the majority of electoral votes wins the presidency.
There are four elected president who did not win the popular vote. The fourth and the most recent was President George W. Bush in the election in 2000.
Jackson actually won the popular vote -- you are thinking of John Q. Adams who won the presidency in 1824 when Jackson won the plurality of the popular vote. Others who won the presidency but lost the popular vote were Hayes in 1876 and George Bush in 2000, and probably John Kennedy in 1960.
Andrew Jackson was the only man who won the popular vote without being elected and later was elected president. Samuel Tilden and Al Gore won the popular vote but never became president.