US President Donald Trump on Tuesday downplayed the incident in which sensitive military plans for a strike against Yemen's Houthis were mistakenly shared in a group chat that included a journalist. Trump referred to it as 'the only glitch in two months' and insisted that it was 'not a serious' issue.

The development, which surprised him when first questioned by reporters, has sparked criticism from Democratic lawmakers accusing the administration of mishandling sensitive information.

The lapse occurred when US National Security Adviser Mike Waltz unintentionally included Jeffrey Goldberg, editor-in-chief ofThe Atlantic, in a group chat with 18 high-ranking officials discussing military strike plans.

Waltz admitted to the mistake and accepted full responsibility, stating that an aide had mistakenly added Goldberg's contact to the conversation.

The incident, which took place over the Signal app, has raised concerns due to the app's public availability and its use for discussing such sensitive matters.

While Trump continued to express support for Waltz, Democratic critics, including former Secretary of State Hillary Clinton, have voiced strong disapproval.

Clinton, commenting on the breach, highlighted the irony of the situation, given Trump's previous criticisms of Hillary Clinton's use of a private email server for sensitive material.