Are you kidding or serious?
When the US President said "It is wrong that in the United States of America, a teacher or a nurse or a construction worker who earns $50,000 should pay higher tax rates than somebody pulling in $50 million" he is either lying or seriously misinformed. Personally I think he was lying deliberately and hoped his followers would believe him without ever really thinking about what he was saying.
The tax rates for someone making $50 million a year is much higher than the tax rates for someone making $50,000 a year. It's called "The Progressive Income Tax" and was first introduced in 1862.
Tax Bracket Married Filing Jointly Single
10% Bracket $0 – $17,000 $0 – $8,500
15% Bracket $17,001 – $69,000 $8,501 – $34,500
25% Bracket $69,001 – $139,350 $34,501 – $83,600
28% Bracket $139,351 – $212,300 $83,601 – $174,400
33% Bracket $212,301 – $379,150 $174,401 – $379,150
35% Bracket Over $379,150 Over $379,150