The president writes a plan budget with the 1.the office of management and budget. 2.the house appropriations committee. 3.the senate appropriations committee 4.the u. s. trreasury department

The president writes a plan budget with the help of THE OFFICE OF MANAGEMENT AND BUDGET. 
The Office of the Management and Budget is the largest office in the presidential cabinet and its principal responsibility is to produce the budget of the president. The director of the section report directly to the president. The congress has to approve the budget before it can become valid.