(Reuters) - More than 600 firefighters in Montana on Tuesday battled to halt the spread of the biggest wildfire in the United States after it torched buildings, raced through forests and drove scores of people from their homes.

WASHINGTON (Reuters) - U.S. President Donald Trump on Tuesday continued to blast the investigation into alleged Russian meddling into last year's U.S. election, slamming his attorney general for not investigating his presidential rival in the race and raising questions, without offering evidence, about Ukraine's role.

LOS ANGELES (Reuters) - U.S. solar companies are snapping up cheap imported solar panels ahead of a trade decision by the Trump administration that could drive up costs and cloud the fortunes of one of the economy's brightest stars.

SYDNEY (Reuters) - Australia will accept several dozen Central American refugees within the next few months, two sources familiar with the process told Reuters, the first transfers under a controversial refugee swap arrangement agreed with the United States.

NEW YORK (Reuters) - For the first time since receiving three government bailouts during the 2007-2009 financial crisis, Citigroup Inc on Tuesday is holding a day-long conference for investors, marking another step in the recovery of what was once the biggest U.S. bank.

WASHINGTON (Reuters) - The U.S. House of Representatives is expected to vote overwhelmingly on Tuesday for a bill that would slap new sanctions on Russia, Iran and North Korea, potentially complicating President Donald Trump's hopes of pursuing improved relations with Moscow.

WASHINGTON (Reuters) - Senator John McCain will make a return to the U.S. capitol on Tuesday to play what could be a crucial role in keeping Republican efforts to repeal Obamacare afloat.

DETROIT (Reuters) - A federal judge in Michigan on Monday halted the deportation of more than 1,400 Iraqi nationals detained during immigration sweeps across the United States last month, the latest legal victory for the detainees in a closely watched case.

WASHINGTON (Reuters) - Frustration is mounting among leading foreign policy officials in President Donald Trump's administration as they chafe at some policy and bureaucratic defeats and complain they lack independence to do their jobs, officials say.

WASHINGTON (Reuters) - Long-delayed legislation to impose new sanctions on Russia hit another snag on Monday when the influential Republican chairman of the Senate Foreign Relations Committee said the announcement of a deal to move the bill forward was premature.

(Reuters) - Qualcomm Inc fired back in its case against Apple Inc on Monday, accusing its critics of waging a "coordinated effort aimed at misdirecting" trade regulators.

SHANGHAI (Reuters) - European shipbuilders' dominance in the $117 billion passenger ship industry may come under threat as Chinese rivals move into the sector to tap booming local demand for cruise holidays.

JERUSALEM (Reuters) - Israel on Tuesday decided to remove metal detectors it had placed at the entrance to a holy site in Jerusalem's Old City with other, less obtrusive surveillance means, a cabinet statement said.

(Reuters) - Martin Shkreli, the pharmaceutical entrepreneur vilified as the "pharma bro" for raising the price of a life-saving drug by 5,000 percent, said on Monday in federal court that he would not testify in his securities fraud trial.

WASHINGTON (Reuters) - Conservative Republicans in the U.S. House of Representatives are seeking to add an amendment this week to spending legislation that would slash the number of staff at the nonpartisan Congressional Budget Office.

(Reuters) - Alphabet Inc surpassed expectations for quarterly revenue and earnings on Monday, reporting higher advertising sales across its platforms and trying to move past a record $2.7 billion European Union fine by taking the entire charge at once.

WASHINGTON (Reuters) - A Democratic member of the U.S. House of Representatives proposed legislation on Monday to bar the U.S. government from renting rooms at President Donald Trump's hotels for official business.

WASHINGTON (Reuters) - A U.S. judge on Monday rejected a bid to prevent President Donald Trump's commission on alleged election fraud from requesting voter roll data from states.

NEW YORK (Reuters) - A sluggish forecast for U.S. economic growth as well as an increase in U.S. states' Medicaid and pension contribution costs is creating a budgetary squeeze in many state capitols, according to a research report issued by S&P Global Ratings on Monday.

LOS ANGELES (Reuters) - Pop singer Justin Bieber canceled the remainder of his "Purpose" world tour due to "unforeseen circumstances," his publicist said in a statement on Monday.