A growing group of Republican members of the United States House of Representatives is warning President Donald Trump over Pentagon funding. They say an additional $350 billion will not be approved unless the White House adopts a tougher policy toward Russia. The warning comes as party members threaten to block more money for the defense department. The dispute links control of the defense budget to the administration's approach to Moscow. Republican critics cited in the item did not spell out their policy demands. The report also does not say whether the proposed $350 billion has been formally requested. It provides no details of any White House response. The threat represents an internal party challenge to Trump.