WASHINGTON, District of Columbia: The United States will only lift sanctions on Zimbabwe’s newly re-elected President Robert Mugabe if he implements political reforms, the US said on Monday. In March 2003, the United States imposed sanctions on Mugabe and on a list of his relatives. Mugabe, Africa’s oldest leader at 89, first took the reins of a newly independent Zimbabwe in 1980 as prime minister. He became president following a constitutional amendment in 1987. He will be sworn in on Thursday for his seventh term, which will last five years.