Pass a law (or executive order) that reduces government pensions for past, current and future members of the House of Representatives, Senate, and the Vice President and President by 50% of their external income. The first $100,000 of spouse's (or partner's) income would be exempt. If both spouses (or partner's) are entitled to a pension only the first $100,000 of combined income would be exempt.
Also include in the law a provision that reduces the government income (salary, etc.) of current and future members of the House of Representatives, Senate, and the Vice President and President by 20% of their income from other sources. The same $100,000 exemption would apply.
The pensions to those who can earn incomes in excess of most Americans amounts to government waste.