The NewsDR Congo has failed to use $8.3 billion committed by global development partners for public projects due to administrative delays and poor management, a failure its president said is “undermining the state’s credibility” as it seeks to attract more foreign capital.Only 24% of an active portfolio worth more than $10.7 billion had been paid out, cabinet meeting minutes released earlier this month showed. DR Congo President Félix Tshisekedi…