▁Brow der ▁wrote , ▁" This ▁extraordinary ▁book ▁interpreted ▁the ▁history ▁of ▁America ▁from ▁its ▁discovery ▁to ▁the ▁present , ▁as ▁an ▁org y ▁of ▁' blo ody ▁band it ry ' ▁and ▁imperial ism , ▁en rich ing ▁itself ▁by ▁' dr inking ▁the ▁rich ▁red ▁blood ' ▁of ▁other ▁pe op les . ▁ ▁The ▁Party ▁campaign ed ▁vig or ously ▁for ▁Henry ▁A . ▁Wal lace ' s ▁candid acy ▁for ▁President ▁in ▁ 1 9 4 8 ▁— ▁which ▁failed ▁to ▁produce ▁a ▁vi able ▁Progress ive ▁Party . ▁The ▁failure ▁of ▁the ▁campaign ▁and ▁the ▁on set ▁of ▁the ▁Cold ▁War ▁contributed ▁to ▁a ▁dis astr ous ▁situation ▁for ▁the ▁un ions ▁and ▁union ▁leaders ▁associated ▁with ▁the ▁Party ▁within ▁the ▁C IO , ▁which ▁exp elled ▁most ▁of ▁them ▁by ▁ 1 9 5 0 . ▁ ▁In ▁ 1 9 4 8 ▁F oster ▁was ▁among ▁the ▁party ▁leaders ▁ind icted ▁for ▁sub vers ive ▁activity ▁under ▁the ▁Smith ▁Act , ▁but , ▁because ▁of ▁his ▁prec ari ous ▁health , ▁he ▁was ▁not ▁brought ▁to ▁trial . ▁The ▁Party ▁began ▁to ▁impl ode ▁as ▁a ▁result ▁of ▁these ▁pro sec utions , ▁as ▁many ▁Party ▁leaders ▁chose ▁to ▁go ▁under ground ▁after ▁the ▁Supreme ▁Court ▁u ph eld ▁the ▁conv iction ▁of ▁the ▁first ▁tier ▁of ▁CP USA ▁leaders ▁in ▁United ▁States ▁v . ▁Dennis , ▁. ▁F oster ▁also ▁pres ided ▁over ▁a ▁number ▁of ▁internal ▁p urg es . ▁ ▁F oster ▁supported