Presidential Funding Act of 2007

[AI summary unavailable — showing source text] Presidential Funding Act of 2007 - Amends Internal Revenue Code provisions relating to public financing of presidential election campaigns to: (1) quadruple (1:1 to 4:1) the matching rate for contributions to primary election candidates; (2) lower from $250 to $200 the limit on individual campaign contributions; (3) increase the presidential primary qualifying threshold from $5,000 to $25,000 in 20 states; (4) require presidential candidates to participate in the primary payment system to be eligible for general election payments; (5) move the starting date for payments to primary candidates from January 1 of a presidential election year to six months before the earliest state primary election; (6) allow additional payments and increased expenditure limits for candidates who face opponents who do not participate in public financing and who raise more than 20% of applicable spending limits; (7) designate the last Friday before the first Monday in September as the date for payments to eligible presidential candidates; and (8) increase from $3 to $10 the presidential campaign tax return check-off amount. Amends the Federal Election Campaign Act of 1971 to: (1) increase expenditure lim…