In the depths of the Cold War, many Americans suspected Communists had infiltrated Washington and were about to subvert our democracy.
( ( In ( ( the depths ) ( of ( the ( Cold War ) ) ) ) ) ( , ( ( many Americans ) ( ( ( ( suspected ( Communists ( had ( infiltrated Washington ) ) ) ) and ) ( were ( about ( to ( subvert ( our democracy ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NP (DT the) (NNS depths)) (PP (IN of) (NP (DT the) (NNP Cold) (NNP War))))) (, ,) (NP (JJ many) (NNPS Americans)) (VP (VP (VBD suspected) (SBAR (S (NP (NNPS Communists)) (VP (VBD had) (VP (VBN infiltrated) (NP (NNP Washington))))))) (CC and) (VP (VBD were) (VP (IN about) (S (VP (TO to) (VP (VB subvert) (NP (PRP$ our) (NN democracy)))))))) (. .)))
Communists messed with American democracy during the Cold War.
( Communists ( ( ( messed ( with ( American democracy ) ) ) ( during ( the ( Cold War ) ) ) ) . ) )
(ROOT (S (NP (NNPS Communists)) (VP (VBD messed) (PP (IN with) (NP (JJ American) (NN democracy))) (PP (IN during) (NP (DT the) (NNP Cold) (NNP War)))) (. .)))