washington president donald trump may tap u.s. energy secretary rick perry replace former homeland security secretary john kelly take white house chief staff week bloomberg news report wednesday bloomberg cite three people familiar deliberations say others also consider post white house officials immediate comment ask bloomberg report energy department spokeswoman say perry content current job secretary perry honor mention happy focus carry mission president give choose lead department energy shaylyn hynes say email friday official department homeland security dhs say republican u.s. representative michael mccaul chair house homeland security committee among consider replace kelly department currently run homeland security deputy secretary elaine duke friday trump replace beleaguer white house chief staff reince priebus six months job instal kelly retire four-star marine corps general place major shake-up top team hire bring discipline white house kelly take new post monday kelly tenure dhs mark drop attempt southern border cross crackdown illegal immigrants criminal record focus gang trump weigh energy secretary perry run homeland security report