前国家安全顾问约翰·博尔顿共和党控制的参议院拒绝传唤该委员会主席周三表示，在唐纳德·特朗普总统的弹劾审判中，众议院司法委员会可能会传唤他作证。
“我认为这是可能的，是的，”众议员杰罗德纳德勒(纽约)告诉记者。“当你有一个无法无天的总统时，你必须把这一点突出出来，你必须关注这一点，你必须保护宪法，无论政治后果如何。”
博尔顿被认为对特朗普与乌克兰的交易有第一手了解，据报道，他在即将出版的一本书里说，总统在游说该国对包括前副总统乔·拜登(Joe Biden)在内的民主党人进行调查时，扣留了军事援助，这将有利于他的连任。
纳德勒表示，他的小组希望博尔顿不仅讨论乌克兰问题，还讨论众议院民主党自去年重新获得众议院多数席位以来针对特朗普政府发起的各种国会调查。其中包括对涉嫌违反宪法薪酬条款的调查。
“我们正在谈论一切，”纳德勒说。在被问及尽管预计特朗普将被弹劾无罪，但继续调查是否会引发政治反弹时，他回应称:“随着越来越多的违法行为浮出水面，我认为公众会理解这一点。”
2019年9月30日，美国前国家安全顾问约翰·博尔顿在华盛顿发表演讲前，出现在战略与国际研究中心
博尔顿说他在9月份辞职，但特朗普说他被赶下台，去年在众议院弹劾调查期间，他被白宫阻止作证。他威胁说，如果收到传票，他会起诉。弹劾调查人员拒绝这样做，理由是接下来会有漫长的法庭辩论。
但是博尔顿上个月改变了态度，说他愿意在参议院的弹劾审判中作证。在试图传唤他以及其他他们认为相关的证人和文件时，参议院民主党人少了两票。尽管犹他州的共和党人米特·罗姆尼和缅因州的苏珊·科林斯与他们的政党决裂，支持听取博尔顿和其他人的意见。
周三下午4点，参议院将对审判进行最后投票，预计将在总统无罪释放后结束。问题仍然是谁——如果有的话——会从他们的党派中叛逃。
在投票前的几个小时里，罗姆尼和西弗吉尼亚州的民主党参议员乔·曼钦以及亚利桑那州的基尔斯顿·西内马是唯一尚未做出决定的议员。以前的通配符，包括道格·琼斯森斯。)、苏珊·科林斯(缅因州)、莉萨·穆尔科斯基(阿拉斯加州)和拉马尔·亚历山大(田纳西州)表示，他们计划与各自的政党一起投票，决定是判总统有罪还是无罪。
JOHN BOLTON WILL LIKELY BE SUBPOENAED BY THE HOUSE TO TESTIFY, TOP DEMOCRAT JERRY NADLER SAYS
Former national security adviser John Bolton, whom the GOP-controlled Senate declined to summon during President Donald Trump's impeachment trial, will likely be subpoenaed by the House Judiciary Committee to testify, the panel's chairman said Wednesday.
"I think it's likely, yes," Rep. Jerrold Nadler (D-N.Y.) told reporters. "When you have a lawless president, you have to bring that to the fore, you have to spotlight that, you have to protect the constitution, whatever the political consequences."
Bolton is believed to have firsthand knowledge of Trump's dealings with Ukraine, reportedly saying in a forthcoming book that the president withheld military aid as he lobbied the country to conduct investigations into Democrats, including former Vice President Joe Biden, that would benefit his re-election.
Nadler said his panel would want Bolton to discuss not just Ukraine, but also the various congressional probes House Democrats have launched against the Trump administration since they regained the chamber's majority last year. That includes investigations into alleged violations of the constitution's Emoluments Clauses, among other things.
"We are talking about everything," Nadler said. Prompted whether there could be political blowback for continuing the probes despite an expected impeachment acquittal for Trump, he responded: "As more and more lawlessness comes out, I presume the public will understand that."
Former U.S. National Security Advisor John Bolton appears at the Center for Strategic and International Studies before delivering remarks September 30, 2019 in Washington, D.C.
Bolton, who said he resigned in September but who Trump said he ousted, was blocked by the White House from testifying last year during the House's impeachment inquiry. He threatened to sue if he was issued a subpoena. Impeachment investigators declined to do so, citing the lengthy court battle that would ensue.
But Bolton changed his tune last month, saying he was willing to testify in the Senate's impeachment trial. In their attempt to subpoena him, as well as other witnesses and documents they believed were relevant, Senate Democrats came up two votes short. This despite Republicans Mitt Romney of Utah and Susan Collins of Maine breaking with their party to support hearing from Bolton and others.
At 4 p.m. Wednesday, the Senate will cast its final vote in the trial, which is expected to end with the president's acquittal. The question remains whether who—if any—senators defect from their party.
Romney and Democratic Sens. Joe Manchin of West Virginia and Kyrsten Sinema of Arizona were the only undecided lawmakers in the hours leading up to the vote. Previous wildcards, which included Sens. Doug Jones (D-Ala.), Susan Collins (R-Maine), Lisa Murkowski (R-Alaska) and Lamar Alexander (R-Tenn.), have stated they planned to vote with their respective parties on whether to convict or acquit the president.
