CREATE TABLE table_24438 ("State" TEXT, "Governor" TEXT, "Senior U.S. Senator" TEXT, "Junior U.S. Senator" TEXT, "U.S. House Delegation" TEXT, "Upper House Majority" TEXT, "Lower House Majority" TEXT)

What's the lower house majority in the state whose Senior senator is J. Shaheen?
SELECT "Lower House Majority" FROM table_24438 WHERE "Senior U.S. Senator" = 'J. Shaheen'
SELECT "Lower House Majority" FROM "table_24438" WHERE "Senior U.S. Senator" = 'J. Shaheen'