House Republicans meanwhile are expected to renew their push for several budget-related proposals that have been included in their own budget plans for several years running. Those include reducing the federal workforce by attrition (with exceptions for defense and security-related jobs) and increasing the required contribution toward retirement benefits for all employees (increases enacted in recent years have applied only to those hired after a subsequent date). House sponsors of the retirement contributions plan have viewed the latter as a step toward eventual cutbacks or elimination, again for those hired after a future date, of the defined benefit-type retirement benefits the government offers through FERS and CSRS. Those plans have not advanced in the Senate because that chamber has been under the control of Democrats, who in most years did not even draft a counterpart budget plan. However, with Republican control of the Senate, chances of further action have improved. The budget outline acts only as a planning document for Congress and is not presented to the White House for signature. Any later bills containing actual changes in law would face the threat of a presidential veto.