In the second impeachment article, the committee Republicans accused Mayorkas of "knowingly making false statements to Congress and the American people and avoiding lawful oversight in order to obscure the devastating consequences of his willful and systemic refusal to comply with the law and carry out his statutory duties."
The committee pointed to previous testimony from Mayorkas, when he confirmed that the border was "closed" and said the department had "operational control" of the border, as evidence of his false statements to Congress. It also argued that Mayorkas had breached the public trust by "refusing to carry out his statutory duty to control the border and guard against illegal entry."
I'll let you find the first article of impeachment.