often include tasks such as drafter and spokesperson for the administration's policies, adviser to the president, and being a symbol of American concern or support. The influence of the vice president in these roles depends almost entirely on the characteristics of the particular administration. Presidential advisor Most recent vice presidents have been viewed as important presidential advisors. Walter Mondale wrote President Jimmy Carter a memo following the 1976 election stating his belief that his most important role would be as a "general adviser" to the president. Al Gore was an important adviser to President Bill Clinton on matters of foreign policy and the environment. Dick Cheney was widely regarded as one of President George W. Bush's closest confidants. Joe Biden asked President Barack Obama to let him always be the "last person in the room" when a big decision was made and to have a weekly lunch with the president; later, as president himself, Biden adopted this model with his own vice president, Kamala Harris. Governing partner Recent vice presidents have been delegated authority by presidents to handle significant issue areas independently. Joe Biden, who both held the office himself and selected a candidate for it as his running mate, has observed that the presidency is "too big anymore for any one man or woman". Dick Cheney was considered to hold a tremendous amount of power and frequently made policy decisions on his own, without the knowledge of the president. Biden was assigned by Barack Obama to oversee Iraq policy; Obama was said to have said, "Joe, you do Iraq." In February 2020, Donald Trump appointed Mike Pence to lead his response to COVID-19 and, upon his ascension to the presidency, Biden put Kamala Harris in charge of controlling migration at the US–Mexico border. Congressional liaison The vice president is often an important liaison between the administration and Congress, especially in situations where the president has not previously served in Congress or served only briefly. Vice presidents are often selected as running mates in part due to their legislative relationships, notably including Richard Nixon, Lyndon Johnson, Walter Mondale, Dick Cheney, Joe Biden, and Mike Pence among others. In recent years, Dick Cheney held weekly meetings in the Vice President's Room at the United States Capitol, Joe Biden played a key role in bipartisan budget negotiations, and Mike Pence often met with House and Senate Republicans. Kamala Harris, the current vice