Economist Jens Südekum, an advisor to SPD leader Lars Klingbeil, warns of a persistent investment backlog despite the establishment of the Infrastructure and Climate Neutrality Special Fund (SVIK). Südekum expressed concern over nearly 30 billion euros in federal investment spending left unspent in 2025, advocating for faster, less bureaucratic construction, potentially facilitated by the Infrastructure Future Act. He acknowledged that constitutional amendments to allow for record debt and ease the debt brake for defense spending were enacted preemptively by the federal government before taking office, fearing future parliamentary obstruction. However, critics like North Rhine-Westphalia's Transport Minister Oliver Krischer argue that funds are being misallocated, citing the cross-subsidization of measures like reduced VAT for gastronomy and the distribution of SVIK funds via the Königsteiner Schlüssel, which may not align with urgent infrastructure needs.