The 20th Amendment, also called the Lame Duck Amendment, decreased the amount of time between the presidential election and the inaugration of the new president. What were the advancements that allowed for this amendment?

As technology advanced, with the telegraph and then the telephone making communications faster and easier, and the railroad and then automobile reducing travel time, the time allowance became unnecessary.

Explanation:  

I got it right on my test :D

- "schenck v. united states, case in which the u.s. supreme court ruled on march 3, 1919, that the freedom of speech protection afforded in the u.s. constitution's first amendment could be restricted if the words spoken or printed represented to society a “clear and present danger.” "

- speech aimed to potentially create danger could be banned.

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question is unclear.

i can't sorry.

post the full question so i can .