My SS payment is being reduced as they are using the Windfall clause . But this is totally wrong and unfair! I paid into the Canadian system for 20 years and same for US . They are mutually exclusive meaning that my us payment was based on what I made in the US and vice versa. To put it differently when I started working on US in 95 my Canadian contribution became zero. Any other interpretations are criminally wrong! I am willing to challenge this to the Supreme Court as our rights are being abused.