They wrote in the amendment clause into the original constitution allowing for constitutional amendments as long as they were approved by a 2/3 vote in both the Senate and House of Reps and wasn't declared unconstitutional by the Judaical or Executive branches. Also a amendment can not be erased from the constitution another amendment must be placed to void it. <span />
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what question i don't know...thats words please understand to me...
It was 19th century political philosophy in US that support greater democracy for common man.