President Donald Trump's domestic problems will follow him to the beaches of Normandy on Thursday as Speaker Nancy Pelosi joins a large delegation of lawmakers traveling there to mark the 75th anniversary of D-Day. The two branches of government have been locked in numerous battles - over Trump's threat to raise tariffs on Mexico; over former and current administration officials testifying before Congress; and subpoenas for his tax returns, business records, and other information. And while the domestic clash may not make its presence felt on the foreign battle field - where 156,000 troops stormed Normandy's beaches and smashed Hitler's Nazis, turning the Second World War in the allies' favor and leading to the liberation of Europe a year later - there is plenty of fodder waiting stateside. Speaker Nancy Pelosi and a large delegation of lawmakers will join President Donald Trump in Normandy to mark the 75th anniversary of D-Day President Trump has been in Europe for a state visit to the UK and to mark the anniversary of the allied invasion of Normandy during World War II 'I don't know if we'll see the president but we have over 60 members coming on the trip,' Pelosi told reporters on Capitol Hill Wednesday before she left for France. She said she didn't know if the lawmakers - which will include members of the House and Senate - will be on the same platform as the president during the services at the U.S. Cemetery in Normandy, where thousands of American D-Day casualties are buried. Thursday's celebration will include veterans and their families, active duty service members, government and military officials and foreign dignitaries. President Trump will also met with French President Emmanuel Macron will he is at Normandy. First lady Melania Trump will also be on hand for the anniversary commencement. Trump's adult children - Don Jr., Eric, Ivanka and Tiffany - are also expected to attend. The ceremony comes after the president's three-day state visit to Britain, where he and his family dined at Buckingham Palace with the Queen and hosted a dinner for Charles, Prince of Wales, and Camilla, Duchess of Cambridge, at the U.S. ambassador's residence. He also held a press conference with Prime Minister Theresa May and visited Westminster Abbey. But despite the packed agenda, President Trump showed domestic matters remained on his mind. 'House Democrats, fresh off a Republican victory against them (in Federal Court) on the Wall, keep asking people to come and testify regarding the No Collusion Witch Hunt. They are very unhappy with the Mueller Report, especially with his corrective letter, & now want a Do Over!,' he tweeted on Wednesday. Democrats are scheduled to hold a contempt of Congress vote next week on Attorney General Bill Barr and former White House Counsel Don McGahn for their refusal to testify before the House Judiciary Committee about special counsel Robert Mueller's report. First lady Melania Trump, seen here with President Trump and Taoiseach Leo Varadkar signing the visitors book at Shannon Airport, will also be in Normandy on Thursday The Trumps arrive in Doonbeg, County Clare, where they will spend the next two nights Another contentious issue is the president's proposed tariff increase on Mexico if the country does not stop illegal immigrants from coming to the United States. Republican senators are expressing concern about the idea out of fears it could act as a tax increase on American businesses and consumers. Enough in the GOP have raised objects it's believed they could muster enough votes to over ride a presidential veto on the matter. Pelosi refused to speculate if the House could do the same, saying they hadn't seen any information on what the White House is proposing. 'We have no paper. We have a tweet and we have a comment but we have no paper as to whether anything or when he's going to do this,' she said on Wednesday. 'So how we respond to it will depend on what they send us.' But, she warned Trump, he was treading on 'dangerous territory.' 'In punishing Mexico, we'll be punishing America as well,' she said. She added: 'I think this is dangerous territory. It's not a way to treat a friend.' Trump will also meet with French President Emmanuel Macron in France - the two men are seen here Wednesday at a D-Day anniversary event in Portsmouth Trump's adult children - Don Jr., Tiffany, Ivanka, Lara and Eric Trump - are expected to join the president in Normandy; they are seen here at a dinner at the U.S. ambassador's residence in London But Trump dismissed the talk that members of his own party could turn against him, bragging about his support among the GOP faithful. 'I don't think they will do that,' he said Wednesday at his press conference with May. 'I think if they do, it's foolish.' 'I have had tremendous Republican support. I have a 94 per cent approval rating of this morning in the Republican Party. An all-time record. Can you believe that? Isn't that something? I love records,' he added. It's unclear where the president got the 94 per cent number. And hanging over both party leaders is the impeachment process: more liberal Democrats are pushing Pelosi to go down that road while she is trying to hold back the tide, arguing that is what President Trump wants them to do out of belief it would backfire and result in his re-election along with Republican control of the House. But Pelosi rejected reports of division within her ranks on how to proceed with congressional oversight of Trump. 'Make no mistake we know exactly what path we're on,' Pelosi said, pounding her hand on the podium to emphasize her words. 'When you're impeaching somebody you want to be sure you have the strongest possible indictment,' she noted. All rights reserved for this news site dailymail and under his responsibility