51. For a bill to become a federal law, it must be passed by a majority of the 435-member House of Representatives, as well as of the 101-member Senate (we count the vice president as a voting member of the Senate); then it must be approved by the president. If the president vetoes the bill, it can still become law if a two-thirds majority of each house of Congress votes to override the veto. (The vice president does not participate in votes to override a veto, so for veto overrides, the Senate has 100 members.) Describe the minimal winning coalitions in this voting system.