What was abraham lincoln’s concern about the supreme court’s dred scott decision? that it would make slavery legal across the nation that it would lead to the direct election of senators that it would lead to the abolition of slavery that the republican party would not support it

The picture below shows president richard nixon and the first lady standing before the great wall of china in 1972. they are smiling - as are the chinese with them. when this picture was shown on american television, americans were aware that it was a historic moment. what are two reasons why this moment was important for both china and the united states?