圍繞努涅斯的爭議使國會對俄羅斯干預美國大選的調查面臨困難

Embattled House Intelligence Committee Chairman Devin Nunes threw a formerly bipartisan investigation of Russian election interference into doubt Tuesday, as he rejected calls for his recusal and stopped the committee’s work for the rest of the week.

An anticipated closed door briefing with FBI Director James Comey and NSA Director Admiral Mike Rogers was postponed, deepening the frustrations of Democratic members who said Nunes’ actions over the last week and a-half jeopardized his credibility and undermined his ability to lead the investigation.

Nunes met a source on White House grounds before making his disclosure last week that members of President Donald Trump's transition team were caught up in “incidental” surveillance, according to his spokesman, who added that Nunes wanted “to have proximity to a secure location where he could view the information provided by the source.”

That revelation led ranking Democratic committee member Rep. Adam Schiff to call for Nunes to step away from the Russia investigation.

“Why would I do that?” Nunes asked a small group of reporters at the Capitol on Tuesday. “Everything is moving as is.” But Democrats said the committee's work has stalled.

Nunes has still not revealed the identity of the source.

He spoke with reporters and the president about the material last week without informing any of the other 21 members of the House Intelligence Committee, angering Democrats who questioned Nunes' credibility. Nunes later apologized to the committee.目前陷入困境的美國國會情報委員會主席努涅斯星期二拒絕規避，並停止了委員會本週的工作，這給國會兩黨就俄羅斯是否曾干預美國大選的調查工作帶來疑問。

努涅斯取消了與聯邦調查局局長科米和國家安全局局長羅傑斯的閉門會議，這加深了民主黨人的不滿。他們稱上週努涅斯的行爲已經損害了他的信譽，破壞了他領導調查的能力。

努涅斯的發言人說，努涅斯在白宮與消息人士會面，隨後才於上週透露，川普總統的過渡團隊成員曾受到“偶然”的監視。這名發言人補充說，努涅斯是希望到 “一個安全地方附近，可以審閱消息來源提供的資訊。”

努涅斯透露這一消息後，招致一些民主黨人要求他遠離有關俄羅斯的調查。但努涅斯星期二在國會山對一小羣記者說，“我爲什麼要退出呢？”他補充說，“每樣事都在正常推進。”但民主黨人表示，委員會的工作已經停滯了。

努涅斯尚未透露消息人士的身份。他上週與記者和川普總統討論了那些材料，但沒有知會另外21名衆議院情報委員會成員，使得民主黨人質疑他的信譽。努涅斯後來向委員會表示道歉。